Dometic ECD16/DTU16/DCU18 Premium A/C Installation Kit – 16,000-18,000 BTU – 115/230V

At 16,000 to 18,000 BTU, this is CTM’s largest single-unit installation kit, scaled up with proportionally larger grilles to handle the airflow these bigger self-contained units move. This capacity range covers some of the most common upgrade targets on mid-sized cruisers — Dometic’s DTU16 and CTM’s own CT-16 chief among them.

One thing worth flagging directly: this listing’s part number (218000110-1) is identical to the 10,000-12,000 BTU Premium kit’s part number, despite the grille sizes being clearly different (100/200 sq. in versus 70/130 sq. in) — almost certainly a content copy-paste rather than these being the same physical kit. Confirming the correct part number with CTM or Citimarine before ordering is a reasonable precaution given this discrepancy.

Kit Includes

• Plastic supply grille (100 sq. in) and return grille (200 sq. in)
• 5″ insulated flex duct, 25 ft length
• Seawater March Pump LC-2CP-MD, 115/230V
• 25 ft seawater A/C hose, 5/8″ ID
• Full-port flanged bronze seacock, 3/4″ pipe size
• Bronze thru-hull intake strainer and raw water strainer with plastic basket

Why Choose This Kit

This is the right kit for the largest common self-contained capacity class, though given the part number discrepancy noted above, confirming the exact part number with CTM or Citimarine before finalizing your order is worth the extra step at this price point.

What to Know Before Installing

• Confirm the correct part number directly with CTM or Citimarine given the discrepancy noted above
• Select the correct voltage (115V or 230V) at checkout
• Grille sizing (100/200 sq. in) is the largest in CTM’s standard installation kit range — confirm your mounting space can accommodate it before ordering