Pressure Switch with 1/4" Female NPT Connection – Adjustable and ReliableThe Merrill MPS Pressure Switch offers precise control for pump operation with easy field adjustability. Featuring a 1 4" female NPT pipe connection and a captive nut on the cover, this switch provides reliable on off cycling with contact points that open on cut out pressure and close on cut in pressure. Adjustment is simple with a screw allowing 2 PSI change per turn. Factory settings have a + 8 PSI tolerance, and field calibration may be required to

where typical set screws rust into place

-Corrosion Resistant – Durable materials withstand corrosion in high-moisture environments

-Made from corrosion-resistant stainless steel

-1/4" Diameter – Perfect size for handling and tying off during well installations

-Designed for well sealing applications

-Suitable for pressure tanks and water well systems

This 90-degree elbow is made from high-quality 304 stainless steel and features female iron pipe (FIP) threads on both ends

this cap ensures a secure and sanitary seal for water wells

-Corrosion-resistant plated bolts

-Heavy Cast Iron Head- Time-proven design built for years of high flow rate use

Crafted from no-lead brass

-One Piece Plunger- Extremely easy to replace o-ring seals