{"product_id":"rain-bird-1812-12-inch-pop-up-spray-bodies-prs-sam-or-sam-prs","title":"Rain Bird 1812 12-Inch Pop-Up Spray Bodies — PRS, SAM or SAM-PRS","description":"\u003ch2\u003eRain Bird 1812 12-Inch Pop-Up Spray Bodies — PRS, SAM or SAM-PRS\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Rain Bird | \u003cstrong\u003eSKUs:\u003c\/strong\u003e 1812PRS, 1812SAM, 1812SAMPRS\u003c\/p\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\u003cp\u003eChoose a 12-inch pop-up body that clears taller planting areas, then match its internal feature to the problem you need to solve. Select 1812PRS for pressure regulation, 1812SAM for low-head drainage control, or 1812SAMPRS for both. These are body-only choices, so you can select a separate nozzle for the required radius and pattern.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e12-inch pop-up height helps bring the nozzle above surrounding planting.\u003c\/li\u003e\n\u003cli\u003ePRS versions reduce higher inlet pressure to a nominal 30 psi at the nozzle.\u003c\/li\u003e\n\u003cli\u003eSAM versions help hold water in lateral piping at elevation changes up to 14 feet.\u003c\/li\u003e\n\u003cli\u003eWiper seal, stainless steel retract spring and ratcheting stem support retraction and nozzle alignment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eShrub beds and landscape areas requiring a taller pop-up.\u003c\/li\u003e\n\u003cli\u003ePressure-regulated spray zones with PRS models.\u003c\/li\u003e\n\u003cli\u003eSloping zones where a SAM model is needed to limit low-head drainage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eModels available: 1812PRS, 1812SAM and 1812SAMPRS; spray bodies supplied without watering nozzles.\u003c\/li\u003e\n\u003cli\u003eInlet connection: 1\/2-inch female NPT.\u003c\/li\u003e\n\u003cli\u003e1812PRS: nominal 30 psi in-stem regulation; 15–70 psi operating range; side or bottom inlet.\u003c\/li\u003e\n\u003cli\u003e1812SAM: SAM check valve holds up to 14 feet of elevation head; 25–70 psi operating range; bottom inlet only; no pressure regulator.\u003c\/li\u003e\n\u003cli\u003e1812SAMPRS: combines nominal 30 psi regulation with SAM check valve; 25–70 psi operating range; bottom inlet only.\u003c\/li\u003e\n\u003cli\u003eFlow rate, radius and pattern depend on the nozzle selected; nozzles are purchased separately.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eModel\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePressure regulation\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSAM check valve\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eInlet installation\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eOperating pressure\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e1812PRS\u003c\/th\u003e\n\u003ctd\u003e30 psi nominal\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eSide or bottom\u003c\/td\u003e\n\u003ctd\u003e15–70 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e1812SAM\u003c\/th\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eYes; up to 14 ft head\u003c\/td\u003e\n\u003ctd\u003eBottom only\u003c\/td\u003e\n\u003ctd\u003e25–70 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e1812SAMPRS\u003c\/th\u003e\n\u003ctd\u003e30 psi nominal\u003c\/td\u003e\n\u003ctd\u003eYes; up to 14 ft head\u003c\/td\u003e\n\u003ctd\u003eBottom only\u003c\/td\u003e\n\u003ctd\u003e25–70 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePop-up height: 12 inches.\u003c\/li\u003e\n\u003cli\u003eBody height: 16 inches.\u003c\/li\u003e\n\u003cli\u003eExposed surface diameter: 2 1\/4 inches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Installation Notes\u003c\/h3\u003e\u003cp\u003eSelect by model in the table; SAM and PRS are different features. A SAM-only body does not regulate pressure, and a PRS-only body does not include the SAM check valve.\u003c\/p\u003e\u003cp\u003eUse the bottom inlet on SAM and SAM-PRS models. The 1812PRS permits side or bottom inlet installation; Rain Bird does not recommend side-inlet installation in freezing climates. Close the unused inlet when applicable.\u003c\/p\u003e\u003cp\u003eChoose a compatible Rain Bird nozzle separately, flush the body before installing it and check coverage during operation. A pressure regulator reduces excess pressure; it cannot increase inadequate supply pressure.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eWhich 12-inch model combines pressure regulation and a check valve?\u003c\/h4\u003e\u003cp\u003e1812SAMPRS combines nominal 30 psi pressure regulation with the SAM check valve. 1812PRS provides regulation only, while 1812SAM provides the check valve only.\u003c\/p\u003e\u003ch4\u003eDoes the 12-inch measurement mean total body height?\u003c\/h4\u003e\u003cp\u003eNo. Twelve inches is the pop-up height. The body height is 16 inches.\u003c\/p\u003e\u003ch4\u003eCan I use a side inlet on 1812SAM or 1812SAMPRS?\u003c\/h4\u003e\u003cp\u003eNo. Those SAM models use the bottom inlet only. The 1812PRS offers side or bottom inlet installation.\u003c\/p\u003e\u003ch4\u003eIs a spray nozzle included?\u003c\/h4\u003e\u003cp\u003eNo. Choose a compatible nozzle separately for the radius and watering pattern your layout needs.\u003c\/p\u003e\n\u003ch3\u003eWhy Buy from Big Frog Supply?\u003c\/h3\u003e\u003cp\u003eChoose this 1812 family when a 12-inch pop-up is needed to clear planting. The choice between 30 psi regulation, a 14-foot-head SAM check valve or both lets you address pressure and slope conditions without confusing those features; the model table also identifies which choice permits a side connection.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which 12-inch model combines pressure regulation and a check valve?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"1812SAMPRS combines nominal 30 psi pressure regulation with the SAM check valve. 1812PRS provides regulation only, while 1812SAM provides the check valve only.\"}},{\"@type\":\"Question\",\"name\":\"Does the 12-inch measurement mean total body height?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Twelve inches is the pop-up height. The body height is 16 inches.\"}},{\"@type\":\"Question\",\"name\":\"Can I use a side inlet on 1812SAM or 1812SAMPRS?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Those SAM models use the bottom inlet only. The 1812PRS offers side or bottom inlet installation.\"}},{\"@type\":\"Question\",\"name\":\"Is a spray nozzle included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Choose a compatible nozzle separately for the radius and watering pattern your layout needs.\"}}]}\u003c\/script\u003e","brand":"Rain Bird","offers":[{"title":"Pressure Regulation - No Nozzle","offer_id":67934312464444,"sku":"fgk1794042178407","price":12.57,"currency_code":"USD","in_stock":true},{"title":"Seal-A-Matic NO side outlet","offer_id":67934312497212,"sku":"ptf1794042178408","price":10.4,"currency_code":"USD","in_stock":true},{"title":"Pressure Regulation w\/ Seal-A-Matic NO side outlet","offer_id":67934312529980,"sku":"pwe1794042178409","price":15.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6985\/2220\/files\/rain-bird-1812-12-inch-pop-up-spray-bodies-prs-sam-or-sam-prs_1.jpg?v=1794042185","url":"https:\/\/www.mossheath.com\/products\/rain-bird-1812-12-inch-pop-up-spray-bodies-prs-sam-or-sam-prs","provider":"My Store","version":"1.0","type":"link"}