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The Dial 9253 is a brass sill cock fitting designed to connect an evaporative cooler to a standard outdoor garden hose bib. It serves as a simple, reliable adapter that lets HVAC technicians and plumbers tap a water supply line without cutting into existing pipe or adding complex plumbing. One end of the fitting carries a 3/4 inches female garden hose thread (FGH), the other end carries a 3/4 inches male garden hose thread (MGH), and a 1/8 inches female iron pipe (FIP) side tap port branches off to the side. That side tap is where the cooler water feed connects. Pair the side tap with a 1/8 inches male pipe thread union or an angle needle valve and the cooler water supply is ready to go. The all-brass body resists corrosion, handles outdoor exposure season after season, and holds up under the modest water pressures typical of residential and light commercial evaporative cooling systems. Brass fittings are a standard choice in HVAC and plumbing because the material threads cleanly, seals tightly with standard thread tape or pipe dope, and does not crack or weep the way plastic fittings can under temperature swings. This sill cock is a direct-connect solution that saves labor time on evaporative cooler installs and seasonal startups. It fits standard garden hose bibs found on most homes and commercial buildings, so no special tools or adapters are needed beyond what most technicians already carry. Dial Manufacturing has been producing evaporative cooler parts and accessories for close to 50 years, and the 9253 reflects that focus on straightforward, durable components that work in the field without fuss. It is the right part for any tech doing a cooler hookup, a seasonal reconnect, or a replacement on an existing water supply line.
The Dial 9253 brass sill cock gives HVAC and plumbing professionals a fast, dependable way to connect an evaporative cooler water supply to a standard garden hose bib using a single durable brass fitting with an integrated 1/8 inches FIP side tap.
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