{"product_id":"small-boston-inflation-check-valve","title":"Small Boston Inflation Check Valve","description":"\u003cp\u003eReplacement small Boston inflation check valve for Canadian Spa portable hot tubs. The one-way Boston valve lets you inflate the cover lid or body bladder while preventing air escaping – if your spa cover won't hold pressure, a worn or cracked check valve is the most common cause.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant – check your size before ordering.\u003c\/strong\u003e Two very similar valve sizes are used across our portable spas. This is the \u003cstrong\u003esmall\u003c\/strong\u003e valve:\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOuter diameter: 40 mm\u003c\/li\u003e\n\u003cli\u003eThread diameter: 22 mm\u003c\/li\u003e\n\u003cli\u003eType: one-way Boston inflation valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eFits the inflatable bladder sections (lids and body) of Canadian Spa portable hot tubs that use the small 40 mm Boston valve. Measure your existing valve's outer diameter to confirm before purchase.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know my valve needs replacing?\u003c\/strong\u003e If the bladder slowly deflates after inflation, or the valve cap no longer seals, replace the valve.\u003c\/p\u003e","brand":"Canadian Spa UK","offers":[{"title":"Default Title","offer_id":34953272711,"sku":"KK-10095","price":6.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1639\/2085\/products\/Portable-Inflation-Valve_large_b5c8bceb-276c-4f12-995f-4903021596e1.png?v=1481154444","url":"https:\/\/www.canadianspacompany.co.uk\/products\/small-boston-inflation-check-valve","provider":"Canadian Spa UK","version":"1.0","type":"link"}