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Remco QTS-556 1/2" MNPT x 3/4" Quick Attach Fitting for Aquajet RV Water Pumps -- 2 Pack

Remco QTS-556 1/2 inch MNPT x 3/4 inch quick attach nylon fittings for Aquajet RV water pumps, 2-pack with O-rings
Remco 1/2" MNPT x 3/4" Quick Attach Fitting For Aquajet Pumps - 2 Pack
 
: $8.15
Part Number: QTS-556
Manufacturer: Remco Industries

Quantity in Stock :10

Availability: In Stock
Qty:

 
Remco Industries OEM Replacement Part Aquajet Pumps Only Remco QTS-556 -- 1/2" MNPT x 3/4" Quick Attach Fittings for Aquajet RV Water Pumps (2-Pack)

Keep your Remco Aquajet pump connected and leak-free with these OEM-spec nylon quick attach fittings. Each fitting pairs a 1/2" male NPT thread with a 3/4" quick attach outlet and an included O-ring for a secure, watertight seal. Sold as a pack of two -- enough to replace both the inlet and outlet connections on a single pump.

Direct-Fit Replacement for Remco Aquajet Pumps

Remco engineered the QTS-556 specifically for their Aquajet series RV water pumps. These fittings are not universal -- the 3/4" quick attach end mates with the proprietary quick-connect ports on Aquajet pump bodies, so you get a no-guess, no-adapter installation every time.

The 1/2" MNPT (male national pipe thread) end connects to standard 1/2" NPT plumbing on the water supply or discharge side of the pump. The included O-ring seats in the quick attach fitting to seal the joint without thread tape or pipe dope on the quick attach side.

OEM Thread Spec

1/2" MNPT inlet end threads directly into standard RV fresh water plumbing fittings and manifolds.

Quick Attach Outlet

3/4" quick attach end is sized and keyed for Remco Aquajet pump ports -- snaps in without tools.

O-Ring Included

Each fitting ships with its O-ring pre-installed, providing a reliable seal at the quick attach connection point.

Lightweight Nylon Build

Nylon construction resists corrosion and keeps weight low -- the full 2-pack weighs just 0.2 lbs.

What Is Included

  • 2 x nylon 1/2" MNPT x 3/4" quick attach straight fittings
  • O-ring pre-installed on each fitting
Two Fittings, One Pump Covered: A single Aquajet pump has both an inlet and an outlet port. The QTS-556 2-pack supplies exactly the right quantity to replace both fittings in one service job -- no need to order extras.

Typical Aquajet Pump Applications

The Aquajet series is Remco's line of demand-type 12V RV water pumps. These fittings are the quick-attach connectors used where the pump body meets the water lines. Common replacement scenarios include:

  • O-ring degradation causing drips at the pump port
  • Cracked or cross-threaded fittings from winterization or over-torque
  • Pump swap-out where the old fittings are worn or missing
  • Upgrading from push-in hose barb fittings to the quick-attach system
Thread Identification Tip: 1/2" MNPT threads measure approximately 0.840" outer diameter with 14 threads per inch (NPT taper). If your existing fitting matches that, QTS-556 is the correct replacement.
Aquajet-Only Fitment: The 3/4" quick attach end of this fitting is designed specifically for Remco Aquajet pump ports. It is not compatible with SHURflo, Flojet, or other RV pump brands, and it is not a standard garden hose or camlock fitting.
Installation Tip: When reinstalling, apply a small amount of thread sealant (PTFE tape or pipe dope) to the 1/2" MNPT threads only -- not to the quick attach end. The quick attach seals via the O-ring. Hand-tighten the NPT side plus 1-2 turns with a wrench; avoid over-torquing nylon threads.

Fitting Specifications

ManufacturerRemco Industries
Part NumberQTS-556
Quantity in Pack2 fittings
Fitting TypeStraight quick attach fitting
Thread End1/2" MNPT (male national pipe thread)
Quick Attach End3/4" quick attach
SealO-ring included, pre-installed
MaterialNylon
Package Weight0.2 lbs (both fittings)

Compatibility

Designed ForRemco Aquajet series RV water pumps
Port StyleAquajet quick attach pump port
Compatible WithStandard 1/2" NPT plumbing fittings on water supply and discharge lines
Not Compatible WithSHURflo, Flojet, or other brand pumps; standard camlock or garden hose threads

What Is NOT Included

PumpNot included -- fittings only
Hose or TubingNot included
ClampsNot included
Additional HardwareNone required for installation
Important Information
  • These fittings are designed for Remco Aquajet RV water pumps ONLY. Do not attempt to use them on other pump brands or with non-Aquajet quick attach ports.
  • Apply thread sealant to the MNPT end only. Do not apply PTFE tape or pipe dope to the quick attach end -- the O-ring provides the seal at that connection.
  • Do not over-torque nylon fittings. Nylon can crack under excess wrench force. Hand-tight plus 1-2 turns is sufficient on the NPT end.
  • Inspect O-rings for damage before installation. A pinched or missing O-ring will result in a leak at the pump port.
  • Not rated for hot water or high-temperature applications. Use in standard fresh water (cold) supply systems only.


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