{"product_id":"pentair-bulkhead-kit-with-o-ring","title":"Pentair Bulkhead Kit with O-Ring","description":"\u003cp data-path-to-node=\"0\"\u003eThe Pentair Filter Bulkhead O-Ring (primarily part number 191470 or 191470Z, and cross-referenced under various model-specific kits like 270101) is a specialized, high-pressure sealing gasket engineered exclusively for the external plumbing ports of Pentair pool and spa filtration systems. This critical elastomeric seal is standard across a wide variety of Pentair equipment lines, including the Clean \u0026amp; Clear Plus cartridge series, FNS Plus Diatomaceous Earth (D.E.) series, Quad D.E. filters, and standard Clean \u0026amp; Clear tank bulkheads.\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\"\u003eInjection-molded from a heavy-duty, high-density, and chemically inert Ethylene Propylene Diene Monomer (EPDM) synthetic rubber compound, this O-ring features a precision circular cross-section designed for dynamic compression. Its primary operational role is to sit nestled within the machined sealing groove of the filter's intake and return bulkhead adapters or union fittings, establishing an absolute watertight and airtight compression boundary between the rigid fiberglass-reinforced tank shell and the external PVC plumbing lines.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eWhen the adjacent bulkhead nut is torqued down, the O-ring compresses uniformly to eliminate localized gaps, ensuring the high-capacity filtration vessel can safely handle high fluid velocities and sustain continuous internal operating pressures up to 50 PSI without weeping, leaking, or experiencing vacuum leaks under intense pump vibration surges.\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003eEngineered to remain resilient under decades of demanding equipment pad conditions, its advanced rubber matrix completely resists structural compression set, hardening, stretching, and corrosive breakdown from exposure to extreme thermal fluctuations and concentrated pool sanitizers like chlorine, bromine, and routine winterizing acid washes. Due to its flexible, slender elastomeric ring profile, this individual replacement bulkhead O-ring carries a net product and shipping weight of approximately \u003cb data-path-to-node=\"3\" data-index-in-node=\"503\"\u003e0.02 to 0.05 pounds\u003c\/b\u003e (about 0.32 to 0.80 ounces).\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":53416217935983,"sku":"178829","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/154714Z-bulkhead2in-upright_90b670ad-0b97-407d-89d1-96baa63164e1.png?v=1782745831","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pentair-bulkhead-kit-with-o-ring","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}