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10,000 BTUs of powerful, quiet, and efficient cooling. 230V. Titanium circulating coils, stainless steel bolts, and stainless steel structural pan with ABS tray ensure long-lasting, corrosion-proof performance in even the toughest of marine environments. 2 Year Warranty*. Patent number.: US 12,030,610 B2.
The quiet, powerful, and efficient CTM is a great option for new installs but also works as the perfect drop-in replacement for all major marine A/C brands including Dometic, Webasto, Cruisair, Marine Air, and Mermaid Air. The CTM is fully compatible with all Dometic, Cruisair, Marine Air, and Micro Air controls/thermostats and cables, making replacement of those systems a breeze.
CTM has taken nearly a decade of experience as a top-selling marine A/C retailer in the US and combining this with an understanding of the wants and needs of marine A/C customers — as well as where other major brands could be improved — CTM has created a self-contained marine air conditioner and heat pump that raises the bar on quality and performance.
Substitute the following Part Numbers
CTM Unit Part Number
Description
Fits OEM Part number
OEM Description
22201C
CT-10 230V 60HZ 410A
205162109
DOMETIC DTG10 230V 50/60HZ 410A
205162100
DOMETIC DTU10 230V 60HZ 410A
205161100
DOMETIC DTU10 220V 50HZ 410A
205161101
DOMETIC DTU10 220V 50HZ 410A 6MR
205162101
DOMETIC DTU10 230V 60HZ 410A 6MR
207500010
DOMETIC ECD10KZ/1-HV 410A KIT 220-240 50/60HZ
205200150
DOMETIC GVTX10 115-230V 50/60HZ
205563450
CRUISAIR STQ10C-410A 230V 60HZ
205563455
CRUISAIR STX10C-410A 230V 60HZ
205563400
MARINE AIR VTD10KZ-410A 230V 60HZ
205563401
MARINE AIR VTD10KZ-410A 6"MR 230V/60HZ
205563451
CRUISAIR STQ10C-410A 6"MR 230V 60HZ
5011397A
WEBASTO FCF PLATINUM 10,000 BTUS 230V
WBCL120002D
WEBASTO S10 BLUECOOL 10,000 BTUS 230V
MSBA11C2
MARINAIRE 11,000 BTUS 230V 60HZ
MSBA9C2
MARINAIRE 9,000 BTUS 230V 60HZ
FM9H
FLAGSHIP 9,000 BTUS 230V COOL & HEAT
FM9
FLAGSHIP 9,000 BTUS 230V COOL ONLY
And while lightweight and with a small footprint, the CTM CT includes titanium circulating coils, a high-velocity rotatable turbo blower (rotates less than 250 degrees), stainless steel bolts, and a stainless steel structural pan with Plastic ABS tray in order to ensure long-lasting, corrosion-proof performance in even the toughest of marine environments.
All CTM Control Boards, Temperature Sensors, and cables are made in the United States under strict quality standards. Every CTM Unit comes with an industry-standard 2-year warranty*, knowledgeable and attentive customer service, and ships ground to you free of charge within the US.
As marine A/C retailers, as well as boaters ourselves, we know what boaters are looking for in a marine A/C system — and this is exactly what the CTM line delivers
CTM CT Unit vs Dometic DTG and Webasto FCF Platinum
Specifications:
Capacity
10,000 BTU
Voltage
208-240 V
Cycle / Phase
60 Hz / 1Ph
Current Consumption Input
3.9 A
Fuse
15 A
RLA / LRA
3.2 A / 16 A
Refrigerant Type
R410A
Refrigerant Charge
12.4 oz / 350 gr
Blower Airflow
380 CFM
Blower Speed
1200 RPM
High Velocity Blower
Yes
Min. Supply Duct Size
5 in / 12.7 cm
Seawater In / Out
5/8" / 5/8"
Condenser Water Flow
5 GPM
Net Weight
48 lbs / 21.7 kg
Features of the CTM CT-10
Titanium Condenser Coil
The most corrosion-resistant material available for seawater cooling coils. 40% more resistant than copper, titanium coils guarantee top cooling performance and a rust-free environment.
Compact Design
Perfect drop-in replacement for all major marine A/C Brands. It's compact design makes it the perfect unit for small spaces.
ABS Insulated Pan
ABS is a versatile thermoplastic product that combines several compounds to offer a durable and corrosion-free material. This insulated pan is designed and made to last for years.
Quiet
Very quiet yet powerful marine air conditioning unit, making it a great option for powerboats and sailboats.
Turbo Blower
High-velocity rotatable turbo blower that will cool or hear faster. Blower rotates less than 250 degrees.
Universal Board
Next generation control board is compatible with most controllers in the market, such as OEM Brands like Dometic, Cruisair, and Marine Air. Also supports the TSEP Temperature sensor. Made in USA.
Reverse Cycle Heating
Enjoy powerful cooling from your CT Unit with the option of heating if needed. Thanks to reverse cycle, you can switch to heating when temperatures get low.
Control and Cable Included
The CT units now come with the Elite II Control and 10ft 8-pin cable included. Since May 1 2026
Dimensions:
A - Depth
20.34 in / 51.65 cm
B - Drain Pan Width
10 in / 25.4 cm
C - Width
11.75 in / 29.8 cm
D - Height
12.4 in / 31.5 cm
E - Min. Duct Diameter
5 in / 12.7 cm
CTM CT Unit Cooling Efficient Design vs Competitors
Because the CTM unit comes with the Universal Control board, it should work with the controller you currently have. Supported controllers include the SMXir, Passport I/O, Smart Touch, and Elite II. However, there are some older versions of the SMXir and Passport i/o controllers that don't have the firmware to work with the new universal board. A newer version of the SMXir or the Passport i/o.
CTM Marine Air Conditioners - All New, Superior Marine Air Conditioning
CTM Marine Air Conditioners not only improve on the efficiency and performance of other top units on the market, but are more durable, longer-lasting A/C units, designed to withstand the harshest of marine environments. CTM units are also fully compatible with controls and thermostats from major marine A/C brands, and can be easily installed yourself, making them the perfect drop-in replacements for units from other brands.
Best Marine Air Conditioners? Best Brand, Support & Warranty?
Boaters often wonder which brand makes the best marine air conditioners when looking to install a new unit.
To be honest, most marine air conditioners from all the major brands are solid and will do the job, as long as they’ve been installed correctly. However, the keyword here is most. You want to improve your odds of being satisfied with your A/C purchase by researching which company’s units have the least number of complaints… and if there is a problem, how that company handles it.
Notes if replacing a Dometic DTU10, DTG10 or ECD10 - 230V
The CTM CT-10H marine air conditioning and heat pump unit works as a good replacement for the Dometic DTG10 - 230V (205162109), DTU10 - 230V (205162100), or ECD10 - 230V (207500010). There are some specs that should be taken into consideration when replacing one of the units previously mentioned.
- Because the CT-10H unit comes with the Universal Control board, it will work with the controller you currently have. Supported controllers included: SMXir, Passport I/O, Smart Touch, Elite II.
- Waterline connections should be the same as the unit you are replacing, the CT-unit has a standard 5/8" water connection.
- The CT-10H Unit has a 5-inch ducting ring whereas the Dometic comes with a 6 inch. It is a quick replacement as the ducting can be easily cinched down with a clamp.
- Dimensions wise this unit is very similar to the one you are replacing, so It shouldn't be a major issue. However, it is suggested you double-check in order to avoid any issues when installing.
Warranty
The warranty period of registered CTM products is (3) two years, being the first year parts and labor, the second & third year parts only. For unregistered CTM products (1) one year, being the first 6 months parts and labor, and the last 6 months parts only. The warranty period of CTM products begins from the date of purchase (if purchased through a dealer or distributor), when installed (if installed by an authorized CTM dealer) and/or at the time of possession of the vessel by the owner (for OEM installations). However, the warranty period shall not exceed (3) three years from the original manufacture date. CTM products include a serial number which is date-coded, in order to determine the manufacturer date of the product, you may contact CTM’s customer service to obtain the original date.
In the event there is an extended period of time between the date a CTM product is manufactured and the moment that the product goes into service, CTM will require proof of purchase. For unregistered products, a proof of purchase will be required as well.
For more detailed information please download the Manual and refer to page 17.
Micro Air EasyTouch / Smart Touch display replacement. Dometic Smart Touch Replacement. Compatible with Dometic and Cruisair A/C Units. Intuitive icons and menus for easy use, leads you through start-up and troubleshooting. Schedule start-up & shut-down times or temperature changes. CAN Bus compatible. Accommodates Vimar Eikon, Eikon Evo bezels ( sold here ). This model is compatible with Dometic's Passport I/O Board and U-Board. 90-day warranty*. Questions? Contact us. (Wi-Fi Model Requires onboard router for dockside and open ocean use.)
Passport I/O Control Panel replacement by Micro Air, for Dometic and Marine Air Systems. Micro-Air 402-IO. It is newly designed and manufactured. Cures annoying problems like sticking or non-operational buttons. New LED segments and 6 fan speed. Drop-in replacement for the Marine Air Systems Control Panel (Passport I/O). Bezel Included. New control. Part Number: ASY-402-X03 Fits Dometic / Marine Air Part Number: 222000245 & PCB-520-00L
CTM Elite II Marine Thermostat - versatile thermostat designed to replace the original Marine Air Elite and Elite II models. It is compatible with all 8-pin cables, making it easy to install. It features f our different modes of operation, including auto, cool only, heat only, and dehumidify, providing you with plenty of flexibility to meet your heating and cooling needs. 90-day warranty*. 8-Pin Cable (Click Here to buy) , Bezel Sold Separately (Click here to buy) CTM Part Number: 40005A
Fits Dometic / Marine Air Elite 2 Display, Part Numbers: 222000234 / 222000244
8-Pin display cable. This display cable is 8-conductor, shielded cable with reversed RJ-45 modular plugs on each end. This cable is compatible with all Micro-Air cabin and chiller controls. Select 6 ft to 75 ft. Compatible with Dometic 8-Pin Controls.
Part Number: SUB-031
SMXir display / keypad. OEM control display for Cruisair ®, Dometic ® and Micro Air, SMXir keypad. Smart, condensed housing with easy surface-mount installation. The large, easy-to-read LED displays cabin temperature, set point, programming prompts, and fault code warnings, and small LEDs and backlit text indicate system status. Compatible with legacy A-281, A-282 (SMX Online), and A-288 (SMXII) power/logic boards. Questions? Contact us. New control. Part Number: SMX IR / 502-09
This display cable is 6-conductor, shielded cable with reversed RJ-12 modular plugs on each end. It is compatible with Boards A-281, A-288, U-Boards, MAQ, equivalent OEM control boards, EasyTouch 6-pin, and equivalent OEM control display. This cable replaces the Dometic CXP Cable.
Part Number: SUB - CXP
NEW Temperature Sensor TSEP, RJ11, From 5 to 80 feet . 90-day warranty*. Probe temperature Sensor for Marine Air Conditioning systems. Compatible with Dometic, Marine Air, Cruise Air, Webasto, and any other Self-Contain or Split Gas unit that uses RJ11 connector (Phone Jack connector). Perfect Dometic Temperature Sensor replacement. Does not work with chiller units. 6-Pin Cable. Reference: TSEP
SMX II AB NEW OEM Keypad Display - ASY-423-X00 . Brand New. Fits Cruisair / Dometic SMX II AB keypad display. Completely new designed and manufactured board. Fully compatible with original Cruisair/Dometic power (logic) boards. For Self-Contained and Split Gas Units . For the chiller system SMX II keypad, see here . Questions? Contact us.
A/C Premium Installation Kit (Pump, Plastic Grills, Duct and Hardware) for Dometic ECD10, DTU10, and DTU12 and CTM CT-10 & CT-12 and Webasto Marine A/C Units. Part Number: 218000110-1
A/C Deluxe Installation Kit (Pump, Plastic Grills, Duct and Hardware) for Dometic ECD10, DTU10, and DTU12 Marine A/C Units. Part Number: 218000110-1D 4-6 WEEKS LEAD TIME FOR TEAK GRILLS
The Micro Air Easy Start 364 is the most advanced and effective soft starter for all A/C applications. It employs a 4-part start ramp sequence that is self-optimizing, resulting in the lowest possible start-up current. EasyStart can deliver 65-75% start current reduction as compared to a compressor's LRA (locked-rotor amperage). It also has numerous specialized fault checks not found in any other soft starter to provide further protection for your compressor. Fits Dometic, Marine Air, Cruisair, and most marine A/C Brands. Part Number: ASY-364 Important: X36 model will only work with units up to 18,000 BTUs when connected to 230V
CTM PM500LH - 230V is a completely submersible seal less centrifugal magnetic drive marine air conditioning pump; also a Completely run dry pump. Model generates a maximum flow of 8.5 gallons per minute and furthermore a maximum head of 19 feet at 25 PSI. The PM500LH - 230V is also ISO 8846 Marine Ignition Protected. 500 gallons/hr. Replaces March: LC-3CP-MD and Dometic PML500
MARCH PUMPS MA LC-2CP-MD 230V is an American submersible seal-less centrifugal magnetic drive pump. 230V - 50/60hz - 5GPM (300 GPH ) OIt might be used submerged or not submerged. 3/8" FPT and 3/4" MPT Inlet, 1/4" MPT Outlet. Commonly used for marine air conditioning and fountains. March Pumps Part Number: LC-2CP-MD 230V Replaces Dometic Part Number: 225500014 - PML250 230V
Double lamination of tough polyester, which encapsulates a steel wire helix, forms air-tight inner core. Seamless black polyethylene vapor barrier surrounds thick blanket of fiberglass insulation. R value 4.2 and meets or exceeds UL-181, NFPA 90A and 90B standards. Resistant to ozone, UV, and corrosion. For Class 1 Heating and AC Duct applications. Operating temperature -20°F to 250°F (-29°C -121°C). Please Select from 4" to 9" Internal Diameter
MPI 163 Series Marine AC Water Hose Extra Heavy duty construction with white PVC cover and black PVC inner tube. ID: 5/8" - OD: .895" - 450 psi - 50 ft. This marine Air conditioning water hose works with all A/C Units that have a 5/8" Seawater Inlet Connection. 90-day warranty*.
Part Number: 163-0586 / 1022510G-50
CTM Air Conditioner Filter for 10,000 - 12,000 BTUs unit. This filter might be compatible with other brands' self-contained units if the dimensions fit. Direct replacement for air filter on the CTM CT-10 and CT-12 Units. Dimensions of filter: 8.5" x 9.5" (WxH) Part Number: 40012F
CTM SMX II Wall Cover Plate for SMXir, Elite II, Qht, Passport & Easy Touch controllers. The plate is reversible, so both can be used, dark grey or black. Dimensions of the Wall Cover: 4.8 x 8.5 x 0.09 inch - 124mm x 217mm x 2.5mm (WxHxD)
CTM Compressor for Marine Self-Contained Units and Split. Works with units from 10,000 BTU's - 230V - 50/60 Hz - R410A. It is fully compatible with CTM, Dometic, Cruisair, and Marine Air Units (CT, DTU, STX, STQ, SXR, VTD, VCP, VRP) units. 90-day warranty. Note: This product is non-returnable and final sale, if you have any questions please contact our customer support team before purchase. Part Number: 40211K
CTM Blower assembly for Marine Self-Contained air conditioning units. Works with units from 10,000 to 12,000 BTUs - 230V. It is fully compatible with CTM, Dometic, Cruisair, and Marine Air ( CT, DTU, STX, STQ, SXR, VTD, VCP, VRP ) units 90-day warranty.
OUT OF STOCK
Protect your investment, avoid unexpected repair costs, and enjoy complete peace of mind with the CTM Extended Warranty.
Add 1 extra year of full parts on top of the standard warranty.
Must be purchased within 30 days of your unit purchase.
Only Valid for CTM Self Contained Units.
I got two of these units to replace 8kbtu Dometic units. Pretty easy to install. The bonus for us is it is both 50 and 60 hz compatible
Boat owner
2024-09-25 19:02:45
By
Don Hamilton
So far we have been very happy with the unit. It seems very quiet and easily keeps the cabin cool on Florida’s hot summer days
CTM 10 230
2021-02-02 21:53:19
By
C. Buono
The unit shipped right away, and the installation was pretty much plug and play. I will need another one this year so I will keep you guys in mind.
Excellent marine A/C units
2021-01-14 22:58:55
By
Jay Edelmen
I’ve had two CTM 10s running 24/7 since early last year, keeping my boat cool all summer, and putting the reverse cycle heating to use lately. They have been brilliant, not a flaw.
Great price and quick free shipping, too.
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