![KIT 2 DUCK BILL VALVES 1-1/2"](http://dahlberg-sa.com/cdn/shop/files/J0000310076-1.jpg?v=1727160693&width=533)
![KIT 2 DUCK BILL VALVES 1-1/2"](http://dahlberg-sa.com/cdn/shop/files/J0000310076-1.jpg?v=1727160693&width=533)
The kit includes two 1½" 38.1 mm diameter non-return valves for S and T pumps, ideal for black water. They are made of durable materials, ensuring optimal and long-lasting performance. They guarantee an efficient unidirectional flow, preventing the backflow of liquids.
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