Pentair 270004 genuine OEM bulkhead union kit, 1-1/2 in and 2 in, blackPentair Genuine OEM Bulkhead Union Kit, 1-1/2" and 2", Black, 270004 In stock$6399
Pentair 270004 genuine OEM bulkhead union kit, 1-1/2 in and 2 in, black

Pentair Genuine OEM Bulkhead Union Kit, 1-1/2" and 2", Black, 270004

Ask a questionMPN 270004
$6399
In stock

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Quick overview

  • Genuine Pentair Factory OEM part 270004, matched to the filter tank thread.
  • Both sizes covered A 1-1/2 in by 2 in set, so it suits either plumbing size at the filter.
  • Clean and Clear Plus The bulkhead union set used on the Clean and Clear Plus cartridge filter.
  • Sold as a kit The union set, not a single half, so the inlet and outlet go back together properly.
  • Black The black version of this union kit, matching the black tank hardware.
  • Plastic Molded plastic, the same material as the original fittings.
Full description and specifications ↓

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Product details

This is the Pentair 270004, the genuine OEM bulkhead union kit for the Clean and Clear Plus cartridge filter, in black. It is a 1-1/2 in by 2 in set.

What the unions do

The bulkhead unions are the connections where the pool plumbing meets the filter tank. They are what let you break the filter loose for service without cutting pipe, and they are the joint most likely to be found dripping on an older tank, since they get loosened and retightened every time the filter is opened.

Sizes and color

The kit covers 1-1/2 in and 2 in, so it works with either plumbing size at the filter. This listing is the black version. Pentair makes the same kit in white under a different part number, so match the color to the hardware already on your tank.

Fitting

Replace the set rather than one half. A union seals as a pair, and a new collar working against an old, distorted seat is a leak waiting to happen. Hand tighten the collars, since over tightening is what strips the threads in the first place.

Specifications
Brand Pentair
Manufacturer part number 270004
UPC 788379608163
Type Bulkhead union kit
Size 1-1/2" x 2"
Color Black
Material Plastic
Part type Pool filter part
Fits Pentair Clean and Clear Plus cartridge filter
Shipping weight 0.9 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Which filter does this fit?
The Pentair Clean and Clear Plus cartridge filter. Pentair part 270004.
Is it 1-1/2 inch or 2 inch?
Both. The kit is a 1-1/2 in by 2 in set, so it covers either plumbing size at the filter connection.
Is there a white version?
Yes, Pentair makes the same union kit in white. It is a separate part number, so order the color that matches the hardware already on your filter.
When should I replace the unions?
When a union will not seal after a new o-ring, when the collar is cracked, or when the threads have been stripped by over tightening. Those are the failures that leave a filter dripping at the plumbing connection.
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