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JMF Company 5/8 in. Compression Plastic Sleeve

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Forms the tight seal that makes a 5/8-inch compression fitting hold, rated to 400 PSI with no soldering required.
Jmf Company MPN 4177531
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Jmf Company item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →

About Product Overview

This 5/8-inch compression sleeve from JMF Company is the small part that makes a compression fitting actually seal. Fit it over the tubing before you thread on the compression nut, and it compresses down to form a tight, leak-free joint - no soldering or special tools needed. Built from plastic and rated for pressures up to 400 PSI, it's a practical choice for water supply line repairs and connections around the house.

  • End 1 Diameter: 5/8 inch, compression type
  • Material: Plastic
  • Maximum Pressure: 400 PSI
  • NSF Listed and IAPMO Certified
  • Average lead content under 0.25%
  • Sold individually, bulk packaging

The Details Specifications

Brand Jmf Company
Model / MPN 4177531
UPC 094913803063
Weight Under 1 lb
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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