{"product_id":"franklin-electric-bt4-cast-iron-booster-pump","title":"Franklin Electric BT4 Cast Iron Booster Pump","description":"\u003c!-- TABS --\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cdiv class=\"gs\"\u003e\n\n\u003cdiv class=\"gs-head\"\u003e\n\u003cdiv class=\"gs-eyebrow\"\u003eFranklin Electric · Booster Pump\u003c\/div\u003e\n\u003cdiv class=\"gs-title\"\u003eBT4 Cast Iron Booster Pump\u003c\/div\u003e\n\u003cdiv class=\"gs-sub\"\u003eThe cast iron build of the BT4 horizontal multi-stage booster: high pressure, modest flow, for boosting from city mains or a private system.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gs-badges\"\u003e\n\u003cdiv class=\"gs-badge\"\u003eCast Iron Bracket\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003eStainless Discharge\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003eHorizontal Multistage\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003e1 in NPT Inlet and Outlet\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003eMax 120 °F\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003eBack Pull-Out Motor\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eOverview\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\n\u003cp\u003eThe BT4 is a low to medium capacity, high pressure multi-stage pump — the right shape for jobs that need more pressure than flow: boosting city or private water pressure, pressure washing, poultry houses, spray and evaporative cooling, misting, irrigation and general plumbing.\u003c\/p\u003e\n\u003cp\u003eThis listing is the \u003cstrong\u003ecast iron\u003c\/strong\u003e build: cast iron motor bracket with a support foot for horizontal or vertical mounting and a carry handle, stainless steel discharge head, Franklin’s Tri-Seal floating stage stack with acetal impellers and modified PPO diffusers on a 300-series stainless shaft and shell, and a mechanical seal with phenolic and ceramic faces. The square-flange ODP motor comes off through the back pull-out design without disturbing the plumbing. Maximum fluid temperature 120 °F.\u003c\/p\u003e\n\u003cp\u003eThe stainless build of the same pump is listed separately. Choose cast iron for cost on clean, non-aggressive water; choose stainless where corrosion, treated water or reverse osmosis duty is involved.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#E1E3E6;border-left:3px solid #B8BDC4;padding:8px 14px;font-size:11.5px;color:#4A4A4F;margin-top:14px;line-height:1.5\"\u003eGenuine Franklin Electric equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier.\u003c\/div\u003e\n\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eModels \u0026amp; Ratings\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003cth\u003eNominal Flow\u003c\/th\u003e\n\u003cth\u003eHP\u003c\/th\u003e\n\u003cth\u003eVoltage \u0026amp; Phase\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5FBT05C4\u003c\/td\u003e\n\u003ctd\u003e95880505\u003c\/td\u003e\n\u003ctd\u003e5 GPM\u003c\/td\u003e\n\u003ctd\u003e1\/2\u003c\/td\u003e\n\u003ctd\u003e115\/230V 1Ph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5FBT1C4\u003c\/td\u003e\n\u003ctd\u003e95880515\u003c\/td\u003e\n\u003ctd\u003e5 GPM\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e115\/230V 1Ph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7FBT05C4\u003c\/td\u003e\n\u003ctd\u003e95880705\u003c\/td\u003e\n\u003ctd\u003e7 GPM\u003c\/td\u003e\n\u003ctd\u003e1\/2\u003c\/td\u003e\n\u003ctd\u003e115\/230V 1Ph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10FBT07C4\u003c\/td\u003e\n\u003ctd\u003e95881010\u003c\/td\u003e\n\u003ctd\u003e10 GPM\u003c\/td\u003e\n\u003ctd\u003e3\/4\u003c\/td\u003e\n\u003ctd\u003e115\/230V 1Ph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20FBT07C4\u003c\/td\u003e\n\u003ctd\u003e95882010\u003c\/td\u003e\n\u003ctd\u003e20 GPM\u003c\/td\u003e\n\u003ctd\u003e3\/4\u003c\/td\u003e\n\u003ctd\u003e115\/230V 1Ph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25FBT1C4\u003c\/td\u003e\n\u003ctd\u003e95882515\u003c\/td\u003e\n\u003ctd\u003e25 GPM\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e115\/230V 1Ph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eWhere two voltages are shown, the first is the factory wiring setting. Voltage is changed on the motor terminal board, never at the pressure switch. All models are single phase unless the table states 3Ph.\u003c\/p\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eSource: Franklin Electric published product information (web), plus the Franklin Electric price list effective 15 Jun 2026.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gs-note\"\u003e\n\u003cb\u003eBefore You Buy\u003c\/b\u003eMatch horsepower, voltage and nominal flow to the duty. Inlet and outlet are 1 in NPT across the line. Send us the flow and the pressure you need added and we will confirm the model against the published curve.\u003c\/div\u003e\n\n\u003cdiv class=\"gs-contact\"\u003eFor engineering-led sizing and selection support or a factory submittal, email \u003ca href=\"mailto:sales@watermainsupply.com\"\u003esales@watermainsupply.com\u003c\/a\u003e or call \u003ca href=\"tel:18885104036\"\u003e1-888.510.4036\u003c\/a\u003e.\u003cbr\u003e© Watermain Supply — A division of E4 Industrial LLC\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003ch5\u003eData Sheet\u003c\/h5\u003e\n\u003cdiv class=\"gs\"\u003e\u003cdiv class=\"gs-sec\" style=\"margin-top:6px\"\u003e\n\u003cp style=\"font-size:13px;color:#9B9EA3\"\u003eData sheets available on request — email sales@watermainsupply.com.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cdiv class=\"gs\"\u003e\u003cdiv class=\"gs-sec\" style=\"margin-top:6px\"\u003e\n\u003cp style=\"font-size:13px;color:#9B9EA3\"\u003eProduct videos are being added to this listing. For a walkthrough in the meantime, email sales@watermainsupply.com.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c!-- \/TABS --\u003e","brand":"Franklin Electric","offers":[{"title":"5FBT05C4 \/ 1\/2 HP - 115\/230V 1Ph","offer_id":50518588915887,"sku":"95880505","price":1378.6,"currency_code":"USD","in_stock":true},{"title":"5FBT1C4 \/ 1 HP - 115\/230V 1Ph","offer_id":50518588948655,"sku":"95880515","price":1729.47,"currency_code":"USD","in_stock":true},{"title":"7FBT05C4 \/ 1\/2 HP - 115\/230V 1Ph","offer_id":50518588981423,"sku":"95880705","price":1440.35,"currency_code":"USD","in_stock":true},{"title":"10FBT07C4 \/ 3\/4 HP - 115\/230V 1Ph","offer_id":50518589014191,"sku":"95881010","price":1548.42,"currency_code":"USD","in_stock":true},{"title":"20FBT07C4 \/ 3\/4 HP - 115\/230V 1Ph","offer_id":50518589046959,"sku":"95882010","price":1474.74,"currency_code":"USD","in_stock":true},{"title":"25FBT1C4 \/ 1 HP - 115\/230V 1Ph","offer_id":50518589079727,"sku":"95882515","price":1504.91,"currency_code":"USD","in_stock":true}],"url":"https:\/\/watermainsupply.com\/products\/franklin-electric-bt4-cast-iron-booster-pump","provider":"Watermainsupply","version":"1.0","type":"link"}