Water Filter Housing O Ring KW101-AMETEK
Water Filter Housing Replacement O Ring For Pentek / Ametek Big Blue® / HD. We recommend consumers keep a spare o ring on hand to avoid urgent situations. This o ring (part # 151122) will accomodate filter housings which require large diameter cartridges. These cartridges have an approximate diameter of 4.5 inches. The o ring itself actually measures approximately 5.465 inch (inside diameter).  This o ring is compatible with Ametek / Pentek model #'s:              Pentek / Ametek 150237 10 inch Big Blue® Housing                  Pentek / Ametek 150469 10 inch Big Blue® Housing                  Pentek / Ametek 150238 10 inch Big Blue® Housing                  Pentek / Ametek 166219 10 inch Big Clear® Housing                  Pentek / Ametek 150239 10 inch Big Blue® Housing                  Pentek / Ametek 150467 20 inch Big Blue® Housing                  Pentek / Ametek 150234 20 inch Big Blue® Housing                  Pentek / Ametek 150233 20 inch Big Blue® Housing                  Pentek / Ametek 150235 20 inch Big Blue® Housing          An o ring facilitates a water tight seal between the water filter sump and the water filter head. The most common o rings (o-rings) used in water filtration are made from Buna N material. Buna N is also commonly referred to as nitrile. This is the ideal choice for cold water filtration because they are inexpensive and have superior performance characteristics.