Stark O-Ring [THS Filter Manway EPDM 50D] (B4951Z) waterlevelers When a drain cover becomes

When a drain cover becomes cracked

and 335B heater applications where the supported vent transition component for an indoor setup needs replacement

and this Darlly cartridge is designed for compatible applications using the 5CH-25 reference

Supplied as a set of two

This switch has practical value because it is tied to a recognizable application family rather than serving only as a generic substitute

Stark O-Ring [THS Filter Manway EPDM 50D] (B4951Z) waterlevelers When a drain cover becomesThe Stark O ring is designed for compatible THS filter manway applications where a dependable seal is needed between connected filter components. An O ring is useful because it helps create a barrier against leaks, supporting cleaner assembly and more dependable pressure retention within the filtration system. This replacement is especially useful when the original O ring is flattened, cracked, brittle, stretched, or leaking. The EPDM 50D construction