Hydroponic pH EC Meter, Water pH TDS PPM Meter with Simultaneous Display for Reservoir Nutrient Solution, pH EC Meter for Water Hydroponic DWC System Setup, Measure Conductivity for Aquaponics Auto_Dec2024_BestSellers you need a minimum of

you need a minimum of a 3-1/2 inch opening in the wall for the offset portion of the trim plate to sit back in to ensure it sets flush to the wall

just pull up the small lever

Their durable design enables safe air removal from your brake system without the hassles of corrosion

Long 71-inch Hose & Adjustable Bracket

17 Inch Garden Hose with 3/4" GHT Adaptor & 1/4" NPT Quick Connect Plug

Hydroponic pH EC Meter, Water pH TDS PPM Meter with Simultaneous Display for Reservoir Nutrient Solution, pH EC Meter for Water Hydroponic DWC System Setup, Measure Conductivity for Aquaponics Auto_Dec2024_BestSellers you need a minimum ofHydroponic pH EC Meter, Water pH TDS PPM Meter with Simultaneous Display for Reservoir Nutrient Solution, pH EC Meter for Water Hydroponic DWC System Setup, Measure Conductivity for Aquaponics Product Features Simultaneously display pH EC Temp or pH ppm Temp: This pH tester can display the measured values of pH EC and temperature at the same time. Press the MODE button can adjust to display the measured values of pH PPM and temperature Simultaneously;