{"product_id":"pentair-inline-pool-thermometer-30-130-f-1-2-mpt-with-replaceable-nylon-well-compact-service-friendly-gauge","title":"Pentair inline pool thermometer 30–130°F, 1\/2\" MPT with replaceable nylon well — compact service-friendly gauge","description":"\u003cp\u003e\u003cstrong\u003ePentair's SL1DW inline thermometer is a 30–130°F pool temperature gauge that installs into 1\/2\" MPT plumbing using a durable nylon well for accurate, protected readings.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep close track of water temperature in pumps, filters, heaters, or return lines with a compact, service-friendly gauge built for pool equipment. The Pentair SL1DW mounts inline, isolating the sensing bulb inside a replaceable nylon well so the thermometer can be removed or replaced without draining a system. It's made to fit standard 1\/2\" male pipe threads and covers the common 30°–130°F range used for residential pool and spa monitoring.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this inline thermometer attach to my pool plumbing?\u003c\/h3\u003e\n\u003cp\u003eThe gauge threads directly into a 1\/2\" male pipe thread fitting (MPT) for a straightforward installation. The included nylon well accepts the sensing element so the thermometer can be removed while the system stays closed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/2\" MPT connection for standard pool lines\u003c\/li\u003e\n  \u003cli\u003eNylon well provides a sealed barrier to the flow\u003c\/li\u003e\n  \u003cli\u003eNo need to open the water system to change the gauge\u003c\/li\u003e\n  \u003cli\u003eCompact 0.5 x 0.5 x 0.5 in overall dimension\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat accuracy and temperature range can I expect?\u003c\/h3\u003e\n\u003cp\u003eThis Pentair unit reads from 30°F to 130°F—suitable for most pools, spas, and equipment loops. The scale is optimized for quick visual checks so you can confirm operational temperatures at a glance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRange: 30–130 degrees Fahrenheit\u003c\/li\u003e\n  \u003cli\u003eClear scale for easy reading\u003c\/li\u003e\n  \u003cli\u003eDesigned for pool and spa temperature ranges\u003c\/li\u003e\n  \u003cli\u003eProtected sensor inside the nylon well improves service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and size features matter for durability?\u003c\/h3\u003e\n\u003cp\u003eDurability comes from the unit’s design: a sturdy housing combined with a replaceable nylon well isolates the sensing element from corrosive or high-flow conditions. The compact form factor and modest weight make it simple to add to existing equipment without heavy supports.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNylon well resists chemicals and reduces direct exposure\u003c\/li\u003e\n  \u003cli\u003eLightweight construction — item weight about 0.75 lbs\u003c\/li\u003e\n  \u003cli\u003eSmall footprint: 0.500 x 0.500 x 0.500 inches\u003c\/li\u003e\n  \u003cli\u003eEasy to swap or upgrade sensor without draining lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Pool service professionals, equipment installers, and homeowners who want a low-cost, low-effort way to monitor water temperature will find the Pentair SL1DW ideal. It’s intended for inline use in residential or light-commercial pool and spa systems where a durable, easy-to-service thermometer with a common 30–130°F scale and 1\/2\" MPT connection is needed. If you need a simple, reliable temperature indication that can be serviced without interrupting system flow, this Pentair inline thermometer is a practical choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install this inline thermometer without draining the system?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The nylon well allows the thermometer to be removed or replaced while the system remains pressurized.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the 30–130°F range suitable for spas?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 30–130°F range covers typical residential spa and pool temperatures for routine monitoring.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":56840111030612,"sku":"B0002RG212","price":100.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/pentair-inline-thermometer-front-view.jpg?v=1787069051","url":"https:\/\/gardenluxe.co.uk\/products\/pentair-inline-pool-thermometer-30-130-f-1-2-mpt-with-replaceable-nylon-well-compact-service-friendly-gauge","provider":"Gardenluxe Uk","version":"1.0","type":"link"}