PRECISE and RELIABLE: Upgrade your pool's filtration system with this 1 or 4inch NPT bottom threaded pressure gauge, designed specifically for select Hayward sand and for DE pool filters. It offers a 0-60psi range, ensuring accurate pressure monitoring for optimal performance. ROBUST CONSTRUCTION: Built to last, this pressure gauge combines a sturdy brass body with a polycarbonate case and lens. It's designed to resist pressure fluctuations and environmental conditions, ensuring durability and reliability through numerous pool seasons. SIMPLE INSTALLATION: This gauge is user-friendly with its easy installation process. It threads securely into place without the need for additional parts or tools, making it a perfect choice for quickly replacing a worn or damaged gauge. OPTIMAL FILTRATION MAINTENANCE: By regularly monitoring the pressure, this gauge helps optimize both filtration and backwash functions. Keeping an eye on the pressure ensures your pool water remains clean and clear, enhancing the overall pool experience. Wide Application: For to Pro Series S140T S144T S180T S210T S220T S220T2 S230T S244T S244T2 S270T S164T S166T S210S S244S S310S S160T S200 S240 sand filter For MicroClear vertical grid DE filter S245T S190T sand filter For Perflex EC30 EC40. Show Accurate Readings: Get accurate pressure readings with this pool sand filter gauge. It is built based on MPa and PSI measurement methods. The product appearance and printed words may vary depending on the batch, but this does not affect use. Colour:As Shown Material:steel Package Contents: 2 x ECX270861 Filter pressure gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.