{"title":"Chain Knockers","description":"","products":[{"product_id":"renssi-wc-series-circular-chain-knockers-with-carbide-teeth","title":"Renssi WC Series Circular Chain Knockers with Carbide Teeth – 5\/16\", 3\/8\" \u0026 1\/2\" Cable","description":"\u003cp\u003eRenssi WC Series \u003cstrong\u003ecircular chain knockers with carbide teeth\u003c\/strong\u003e are built for aggressive pipe cleaning and descaling with rotating cable and flex-shaft equipment. The circular chain arrangement works around the pipe wall while carbide teeth provide added cutting action against stubborn buildup.\u003c\/p\u003e\n\u003cp\u003eChoose the chain knocker based on your cable size and pipe diameter. The selected models cover 5\/16\", 3\/8\" and 1\/2\" cables with options for pipes from 2\" through 8\". The Renssi catalog also offers two chain sizes for selected 1\/2\" cable configurations.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 20px;\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 style=\"font-size: 20px;\"\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlex-shaft pipe cleaning\u003c\/li\u003e\n\u003cli\u003ePipe descaling\u003c\/li\u003e\n\u003cli\u003eRust, mineral deposits and heavy buildup\u003c\/li\u003e\n\u003cli\u003eProfessional drain and sewer cleaning\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Renssi","offers":[{"title":"5\/16\" (8 mm) \/ 2\" (50 mm) – 4 mm Chain","offer_id":54644828438838,"sku":"WC-1050-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"5\/16\" (8 mm) \/ 3\" (75 mm) – 4 mm Chain","offer_id":54645146485046,"sku":"WC-1075-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"5\/16\" (8 mm) \/ 4\" (100 mm) – 4 mm Chain","offer_id":54645146517814,"sku":"WC-1100-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 3\" (75 mm) – 4 mm Chain","offer_id":54645146681654,"sku":"WC-2075-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 4\" (100 mm) – 4 mm Chain","offer_id":54645146714422,"sku":"WC-2100-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 6\" (150 mm) – 4 mm Chain","offer_id":54645146747190,"sku":"WC-2150-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 3\" (75 mm) – 4 mm Chain","offer_id":54645146878262,"sku":"WC-3075-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 4\" (100 mm) – 4 mm Chain","offer_id":54645146911030,"sku":"WC-3100-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 6\" (150 mm) – 4 mm Chain","offer_id":54645146943798,"sku":"WC-3150-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 8\" (200 mm) – 4 mm Chain","offer_id":54645146976566,"sku":"WC-3200-4","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 4\" (100 mm) – 5 mm Chain","offer_id":54645147009334,"sku":"WC-3100-5","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 6\" (150 mm) – 5 mm Chain","offer_id":54645147042102,"sku":"WC-3150-5","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/9755\/2694\/files\/keharassit_large_baa2bdcc-49ba-45cb-af0e-84ecdba83174.png?v=1790273611"},{"product_id":"renssi-rs-nc-series-chain-knockers-without-carbide","title":"Renssi RS-NC Series Chain Knockers Without Carbide – 5\/16\", 3\/8\" \u0026 1\/2\" Cable","description":"\u003cp\u003eRenssi RS-NC Series \u003cstrong\u003echain knockers without carbide\u003c\/strong\u003e give you a mechanical cleaning option for removing buildup from inside pipes with a rotating cable system. These models use cleaning chains without the solid carbide inserts found on Renssi's carbide-equipped chain tools.\u003c\/p\u003e\n\u003cp\u003eChoose the tool based on your rotating cable diameter and the pipe size you're cleaning. The selected RS-NC models cover 5\/16\", 3\/8\" and 1\/2\" cables with options for pipe diameters from 2\" through 6\".\u003c\/p\u003e\n\u003ch3 style=\"font-size: 20px;\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 style=\"font-size: 20px;\"\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRotating cable and flex-shaft cleaning systems\u003c\/li\u003e\n\u003cli\u003eMechanical pipe cleaning\u003c\/li\u003e\n\u003cli\u003e2\" through 6\" pipe, depending on model\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Renssi","offers":[{"title":"5\/16\" (8 mm) \/ 2\" (50 mm) – Double Chain","offer_id":54644973961526,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"5\/16\" (8 mm) \/ 2\" (50 mm) – Triple Chain","offer_id":54644973994294,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"5\/16\" (8 mm) \/ 3\" (75 mm) – Double Chain","offer_id":54644974027062,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"5\/16\" (8 mm) \/ 3\" (75 mm) – Triple Chain","offer_id":54644974059830,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"5\/16\" (8 mm) \/ 4\" (100 mm) – Triple Chain","offer_id":54644974092598,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 3\" (75 mm) – Double Chain","offer_id":54644974125366,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 3\" (75 mm) – Triple Chain","offer_id":54644974158134,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 4\" (100 mm) – Triple Chain","offer_id":54644974190902,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 5\" (125 mm) – Triple Chain","offer_id":54644974223670,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 6\" (150 mm) – Triple Chain","offer_id":54644974256438,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 3\" (75 mm) – Double Chain","offer_id":54644974289206,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 3\" (75 mm) – Triple Chain","offer_id":54644974321974,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 4\" (100 mm) – Triple Chain","offer_id":54644974354742,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 5\" (125 mm) – Triple Chain","offer_id":54644974387510,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 6\" (150 mm) – Triple Chain","offer_id":54644974420278,"sku":null,"price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/9755\/2694\/files\/rsnc1000_large_faf08ec6-0550-4780-9493-2a31f6377a0f.png?v=1790270160"},{"product_id":"renssi-wc-nc-series-circular-chain-knockers-without-carbide","title":"Renssi WC-NC Series Circular Chain Knockers Without Carbide – 5\/16\", 3\/8\" \u0026 1\/2\" Cable","description":"\u003cp\u003eRenssi WC-NC Series \u003cstrong\u003ecircular chain knockers without carbide\u003c\/strong\u003e give you a 360-degree mechanical cleaning setup for rotating cable and flex-shaft pipe cleaning. The circular chain arrangement positions the cleaning chains around the tool for contact with the inside of the pipe, without the carbide inserts used on more aggressive WC models.\u003c\/p\u003e\n\u003cp\u003eChoose the right configuration based on your cable size and pipe diameter. The selected models cover 5\/16\", 3\/8\" and 1\/2\" cable with pipe sizes from 2\" through 8\". All three series shown here use 1\/8\" (4 mm) chain.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 style=\"font-size: 20px;\"\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlex-shaft and rotating cable pipe cleaning\u003c\/li\u003e\n\u003cli\u003eMechanical removal of pipe buildup\u003c\/li\u003e\n\u003cli\u003eApplications where a non-carbide chain tool is preferred\u003c\/li\u003e\n\u003cli\u003e2\" through 8\" pipe, depending on model\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Renssi","offers":[{"title":"5\/16\" (8 mm) \/ 2\" (50 mm)","offer_id":54645200191798,"sku":"WC-1050-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"5\/16\" (8 mm) \/ 3\" (75 mm)","offer_id":54645224210742,"sku":"WC-1075-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"5\/16\" (8 mm) \/ 4\" (100 mm)","offer_id":54645224243510,"sku":"WC-1100-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 2\" (50 mm)","offer_id":54645200290102,"sku":"WC-2050-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 3\" (75 mm)","offer_id":54645224341814,"sku":"WC-2075-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 4\" (100 mm)","offer_id":54645224374582,"sku":"WC-2100-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" (10 mm) \/ 6\" (150 mm)","offer_id":54645224407350,"sku":"WC-2150-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 3\" (75 mm)","offer_id":54645224472886,"sku":"WC-3075-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 4\" (100 mm)","offer_id":54645224505654,"sku":"WC-3100-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 6\" (150 mm)","offer_id":54645224538422,"sku":"WC-3150-NC","price":123.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" (12 mm) \/ 8\" (200 mm)","offer_id":54645224571190,"sku":"WC-3200-NC","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/9755\/2694\/files\/WC3000_large_985e4f75-1c05-42b8-8bba-87642cf9acad.png?v=1790273233"}],"url":"https:\/\/www.seattlepump.com\/collections\/chain-knockers.oembed","provider":"Seattle Pump","version":"1.0","type":"link"}