An inline mechanical shut-off timer that automatically stops water flow after 15–120 minutes — prevents container overflow when filling jugs, tanks, or bottles from a countertop RO system. No batteries, no electricity. Includes 1/4″ OD tubing adapters — works directly with MyWaterClub Legacy countertop RO systems.

Why you need this

Countertop RO systems produce purified water continuously as long as the faucet is open. If you’re filling a jug, tank, or bottle and walk away, the container overflows. This inline mechanical timer solves the problem: set your fill time (15 to 120 minutes), start the system, and the timer automatically shuts off water flow when the time is up — no monitoring, no spills.

It’s fully mechanical — no batteries, no power outlet, no electronics. Turn the dial to set the time, and the spring-driven mechanism does the rest. Perfect for overnight or unattended operation.

Key benefits

• ✓Adjustable 15–120 minutes — set the fill time you need
• ✓Automatic shut-off — prevents overflow, spills, and water damage
• ✓Fully mechanical — no batteries, no electricity, no electronics
• ✓Two connection options — inline on 1/4″ tubing or direct to a garden/laundry hose
• ✓Great for filling bottles, jugs, tanks — walk away without worry
• ✓Complete kit — timer + nipple + 2 adapters included

What’s in the box

Specifications

Often used with

Good to know before you buy

• This kit connects via 1/4″ OD tubing — the standard size for MyWaterClub Legacy countertop RO systems. No additional adapters needed.
• Turn the dial past 120 and back to your desired time for the most accurate set. Mechanical timers are most consistent when wound fully first.
• The timer shuts off flow, not the faucet. When the timer closes, water stops flowing to the system. Turn off the faucet manually afterward to release pressure.
• Test with a short fill first (15 min) to calibrate your expected fill time before leaving unattended.
• The timer is a mechanical (spring) device — timing is approximate, not precision. Allow a margin when filling near-capacity containers.