(1) Big Blue O ring Fits 20" x 4.5" & 10" x 4.5" double O-rings Filter Housing with Brass 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 Our 10 or 20 Big blue housings

This o ring is for Big Blue Housing Heads with Brass Ports (pictured below)

( Required 2 o rings for each housing) 

Diameter:

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