{"product_id":"pentair-25-black-bottom-mount-pressure-gauge","title":"Pentair .25\" Black Bottom Mount Pressure Gauge","description":"\u003cp\u003eThe Pentair 0.25\" Black Bottom-Mount Pressure Gauge (Product #: 190059) is a factory-original OEM replacement diagnostic instrument engineered to provide continuous, high-accuracy monitoring of the internal hydraulic stress within pool and spa filtration systems. Specifically designed for a broad range of premium Pentair machinery—including Clean \u0026amp; Clear® Plus cartridge filters, FNS® Plus diatomaceous earth (DE) separation tanks, and Triton® II sand filters—this critical monitoring component features a standard 1\/4-inch National Pipe Thread (NPT) brass male connection that screws securely into the bottom or top manual air relief valve assembly. The gauge utilizes a clear, high-visibility analog dial face protected by a shatterproof lens and encased in a rugged, impact-resistant black ABS polymer housing, tracking operational lines smoothly from 0 to 60 PSI (pounds per square inch). By delivering instantaneous pressure readings, it alerts pool owners and service technicians when systemic backpressure spikes, signaling that the filter bed has loaded with debris and requires a high-velocity backwash or manual element cleaning before pump cavitation or flow restrictions occur. Built to comfortably manage continuous pressure-side fluid cycles and extreme seasonal equipment pad heat, its durable internal Bourdon tube mechanism resists chemical degradation from high chlorine or bromine shock and advanced salt-chlorine generation. The physical dry weight of this single Pentair 0.25\" Black Bottom-Mount Pressure Gauge is approximately \u003cb data-path-to-node=\"0\" data-index-in-node=\"1551\"\u003e0.18 pounds\u003c\/b\u003e (roughly 2.88 ounces, with a nominal packaged shipping weight of 0.35 pounds), providing an essential, long-lasting, and highly reliable diagnostic standard to preserve optimal filtration circulation and baseline energy efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":53180326314095,"sku":"15060-0000TZ","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/74677_dad539c4-eaf6-456f-91eb-aa742c715a12.webp?v=1780414850","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pentair-25-black-bottom-mount-pressure-gauge","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}