Use this wrench to loosen E10, E20 and SRX feeder Bowls. Before removing the bowl be sure to turn your water off! If you can bleed any water off, thru a hose or open faucet, this will help reduce the water pressure still pressing against the bowl.
After you have replaced the filter, thread the bowl back on but only 'hand-tight'. Once the water is turned back on again, the water pressure will make the closure very tight.
We do not recommend using a wrench to tighten these bowls.