{"product_id":"plastic-first-stage-regulator-dust-cap-with-o-ring-string","title":"Plastic First-Stage Regulator Dust Cap with O-Ring \u0026 String","description":"\u003cp\u003eThe cheapest insurance your regulator will ever get. This universal plastic dust cap seals your first stage inlet against water, salt, and grit between dives — the number-one cause of avoidable regulator corrosion. The included O-ring gives a positive seal on standard yoke (K-valve) first stages, and the attached string keeps the cap with your reg so it's always there when you rinse your gear. Toss one in your save-a-dive kit and protect your investment.\u003c\/p\u003e\u003cp\u003e\u003cem\u003ePairs well with: the Save-a-Dive O-Ring Kit, the Marine Sports Master Tool, and Marine Sports Regulator Cleaner.\u003c\/em\u003e\u003c\/p\u003e","brand":"Marine Sport Mfg Inc","offers":[{"title":"Default Title","offer_id":54066471829868,"sku":"1055","price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/1691\/9916\/files\/Screenshot2026-07-21at11.46.49PM.png?v=1784692015","url":"https:\/\/depthfindersscuba.com\/products\/plastic-first-stage-regulator-dust-cap-with-o-ring-string","provider":"Depth Finder's Scuba","version":"1.0","type":"link"}