Check the listing for details. Pool Filter Pressure Gauge, Adjustable Twist Bezel, 1/4" NPT Low Mnt 0-60 psi. Condition: New. Listed at 8.95 USD. POOL FILTER PRESSURE GAUGE2" Black Case - Lower Mount Professional Pool Spa Filter Water Pressure Gauge Large Easy To Read Dial Size, With Strong Case And Lens And ¼” Brass Connection. ASME B40.1 Grade B Accuracy Compliance ± 3-2-3 % Of Span. Adjustable Twist Bezel, Large Marked Clear To Set The Start / Clean Filter Differential Durable Movement, Brass Wetted Parts, Accuracy: +/-2.5% Comply to ASME B40.100 Standard, Pressure Range To 60psi/4bar, Double Scales With Different Color, Easy To Read. Dual Scale: Psi / Bar With KPA Guidance To Suit Many Filters Type. Widely Used For Pressure Measuring On The Filter Of Swimming Pool, Spa, Aquarium Water And So On.POOL FILTER PRESSURE GAUGE2" Black Case - Lower Mount Professional Pool Spa Filter Water Pressure Gauge Large Easy To Read Dial Size, With Strong Case And Lens And ¼” Brass Connection. ASME B40.1 Grade B Accuracy Compliance ± 3-2-3 % Of Span. Adjustable Twist Bezel, Large Marked Clear To Set The Start / Clean Filter Differential Durable Movement, Brass Wetted Parts, Accuracy: +/-2.5% Comply to ASME B40.100 Standard, Pressure Range To 60psi/4bar, Double Scales With Different Color, Easy To Read. Dual Scale: Psi / Bar With KPA Guidance To Suit Many Filters Type. Widely Used For Pressure Measuring On The Filter Of Swimming Pool, Spa, Aquarium Water And So On. </f