Gaskets and Seals O-rings, Grommets and Vacuum Caps

CULLIGAN INT

ORING REPLMT US-550

$17.72

SKU: C07I OR-38

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item

Description

The Culligan OR-38 is a replacement O-ring designed for water filtration housings. It features a 3/8" housing O-ring and is used for undersink water filters, specifically compatible with model US-600A and US-550.

This lubricated rubber gasket is suitable for many brands of under sink and whole house water filtration housings. It is designed for housings with a 3.5-inch diameter sump and 3/8" inlet/outlet.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCULLIGAN INT
Part NumberC07I OR-38

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy