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The quick-disconnect valves that let you break the hose runs on a Crystal-Flo canister without draining the tank down the wall. They are the part people break: the taps get cranked closed too hard, the O-rings harden, and eventually a joint weeps every time the canister comes off for a service.
Sizes
- CF20 / CF40 — the smaller canisters.
- CF60 / CF80 — the larger canisters, larger hose bore.
Two valves per pack — one for the intake, one for the return, which is how they should be replaced. Mixing an old valve with a new one on the same canister just moves the leak.
These fit the same canisters whether yours is badged Marina or Elite Crystal-Flo — Hagen sold the range under both names.
Also for these filters: CF20 impeller assembly · CF40 impeller assembly · foam pads
More from the range: Marina at PeekAPaw · Fish & Aquarium Supplies