The KoolAir PM1000-115 magnetic drive hvac coolant pump is most commonly used for marine air conditioning seawater circulation.

Koolair Pump PM1000-115 Marine Air Conditioning Coolant Pump for Boats, Run Dry Protection, 115V

Open Drip Proof Motor Enclosure Model; ETL-Certified; UL Recognized; Sturdy 1 Phase 115-Volt (50/60HZ) Motor; Open Air for Complete Moisture Protection; 56” Cord is UL Listed 18/3 Wire

  • 1000 GPH
  • 1″ FPT Inlet, 1/2″ MPT Outlet
  • 27 Feet of Head @ 11.7 PSI
  • 115 Volt
  • 1/8 HP

The ETL Listed Mark indicates to distributors, retailers and customers that our product has been tested by Intertek and found in compliance with accepted national standards.

SKU: PM1000-115 Categories: , Tags: ,


The Koolair PM1000-115 ODP (Open Drip Proof Motor Enclosure Model) is a sealless centrifugal magnetic drive marine hvac pump. Series generates a maximum flow of 17.2 gallons per minute with a maximum head of 27 feet at 11.7 PSI.

Perfect economical replacement for March AC-5C-MD Pump 115 volt model.

Features & Benefits Of Our PM1000-115 Marine Coolant Pumps

  • Run Dry Protection is how to withstand thermal overloads without failure. When cooled, the pump will resume operating normally.
  • Materials exposed to the solution (wet end) are Reinforced Polypropylene, Buna N and Ceramic Magnet. When submerged, Epoxy, Stainless Steel, Polysulfone, and the Cord will also come in contact with the solution.
  • The inlet connection is a 1” female pipe thread and the outlet is ½” male pipe thread.
  • Includes fully integrated, heavy duty, Epoxy coated marine base, as well as the original base.
  • The motor is a 1 Phase 115V, 1/8 Horsepower motor, running on either 50 or 60 HZ.
  • Maximum internal pressure is 50 PSI and the maximum liquid temperature is 180 Fahrenheit or 82 Celsius.
  • The hardened Carbon bushing allows for extended run dry time as a result without any damage to the pump head. See the parts diagram for assembly instructions. Trimming of the impeller is possible to modify flows or compensate for liquids of higher viscosity.
  • ETl Listed


Most commonly used on your boat or yacht for marine air conditioning while circulating seawater.

Limited Warranty Statement

Koolair Pumps are guaranteed only against defects in workmanship or materials for a period of one year from date of manufacture while pumping water.

Packed weight is 10 pounds. Please see our data sheet similarly for flow and curves. Look under additional information tab to find mechanical specifications.

UPC: 852575006020

PM1000 Series

If you are looking for more and increase to flow and head, check out our other models.

Additional information

Attribute Information
Weight 10 lbs
Dimensions 11 × 8 × 6.5 in
Maximum Flow

17.2 GPM (54.8 LPM)

Maximum Head

27 Feet of Head @ 11.7 PSI

Maximum Internal Pressure

50 PSI

Maximum Liquid Temperature

180° F (82° C)


1″ FPT


1/2″ MPT


50/60 Hz


115 Volt


Single Phase (1 PH)






1/8 HP



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