(1) Big Blue O ring Fits 20" x 4.5" & 10" x 4.5" double O-rings Filter Housing with PVC Ports

Qty 1 Big Blue Heavy Duty Housing O-ring 

for 10 or 20 Big Blue Water with Double o-ring Filter Housings Only. For Single O ring Big Blue Housing Please buy item # 105460

Quantity: One (1) O-Ring.

Fits Some standard 10 or 20 Big blue housings by Culligan; Ametek; Pentek; US Filter; Plymouth; Kleen Plus; and American Plumber. Please check your O ring CS size before considering buying this item.

This o ring is for Big Blue Housing Heads with PVC ports (pictured below)

Diameter:

• ID = 5.58"
• CS = 0.170"
• OD = 5.75"