{"product_id":"pentairsmallbodyflowmeter34nylonthreadedend216gpmldf359npenldf359n","title":"Pentair Small Body Flowmeter 3\/4\" Nylon Threaded End 2-16 GPM | LDF359N","description":"\u003cdiv\u003e\n  \u003ch2\u003ePentair Letro Flowmeter, 2–16 GPM, 3\/4\" Nylon Threaded End (Small Body) | LDF359N\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Pentair LDF359N is a compact inline flow meter designed to measure water flow in the \u003cstrong\u003e2–16 GPM\u003c\/strong\u003e range.\n    It features \u003cstrong\u003e3\/4\" nylon threaded ends\u003c\/strong\u003e for straightforward installation and an easy-to-read scale for quick\n    verification of system flow. It’s commonly used where you need to confirm or dial in flow rate for pool\/spa plumbing,\n    water features, equipment pads, and general liquid flow applications.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlow range:\u003c\/strong\u003e 2–16 gallons per minute (approx. 8–61 LPM).\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3\/4\" nylon threaded ends\u003c\/strong\u003e for inline plumbing installation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEasy-to-read indicator\u003c\/strong\u003e for fast flow verification during setup and service.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompact “small body” design\u003c\/strong\u003e helps fit tighter equipment pads.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eService-friendly\u003c\/strong\u003e design intended for straightforward installation and routine checks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Uses\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerifying system flow during equipment setup or troubleshooting\u003c\/li\u003e\n    \u003cli\u003eConfirming flow rate for chemical feed systems and controllers (where a specific flow window is required)\u003c\/li\u003e\n    \u003cli\u003eChecking booster\/water feature flow to help fine-tune performance\u003c\/li\u003e\n    \u003cli\u003eGeneral water flow measurement in 3\/4\" threaded liquid lines\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Pentair\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LDF359N\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCatalog \/ Reference:\u003c\/strong\u003e 3280-139\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlow Range:\u003c\/strong\u003e 2–16 GPM (approx. 8–61 LPM)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eConnection Size:\u003c\/strong\u003e 3\/4\" threaded (nylon ends)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBody Style:\u003c\/strong\u003e Small body\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 788379505882\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold individually\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSelection Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n      Choose a flow meter range where your normal operating flow sits in the middle of the scale when possible—this improves readability.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      Confirm your plumbing thread type and clearance before ordering (especially in tight equipment bays).\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=flow%20meter\"\u003eFlow meters\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=check%20valve\"\u003eCheck valves\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=union%203%2F4\"\u003e3\/4\" unions and fittings\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=thread%20sealant\"\u003eThread sealant and PTFE tape\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eKeep debris out of the line—restriction upstream can cause inaccurate readings and reduced performance.\u003c\/li\u003e\n    \u003cli\u003eIf readings become erratic, inspect for air in the line and confirm the meter is installed in the correct flow direction (if marked).\u003c\/li\u003e\n    \u003cli\u003eDo not over-tighten plastic threaded ends; use a plastic-safe thread sealant and tighten snugly to prevent cracking.\u003c\/li\u003e\n    \u003cli\u003eWinterize properly in freeze-prone areas to reduce risk of cracking from trapped water.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589954400572,"sku":"LDF359N","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-small-body-flowmeter-34-nylon-threaded-end-2-16-gpm-ldf359n-miscellaneous-4638756.jpg?v=1771037526","url":"https:\/\/aquapoolsupply.com\/products\/pentairsmallbodyflowmeter34nylonthreadedend216gpmldf359npenldf359n","provider":"Aqua Pool Supply","version":"1.0","type":"link"}