![Polypropylene Double Threaded Bulkheads are used to penetrate Pond Liners, Pond skimmers, etc., to create inlets and outlets Polypropylene Double Threaded Bulkheads are used to penetrate Pond Liners, Pond skimmers, etc., to create inlets and outlets](https://www.pondmarket.com/wp-content/uploads/product_b_u_bulkhead-fittings-for-ponds.jpg)
Polypropylene Double Threaded Bulkheads are used to penetrate Pond Liners, Pond skimmers, etc., to create inlets and outlets
![Amazon.com: Little Giant AD-BH-2 Bulkhead Fitting Suitable for Ponds, 2-Inch FNPT, Black, 566257 : Patio, Lawn & Garden Amazon.com: Little Giant AD-BH-2 Bulkhead Fitting Suitable for Ponds, 2-Inch FNPT, Black, 566257 : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/81oiA6hFvZL.jpg)
Amazon.com: Little Giant AD-BH-2 Bulkhead Fitting Suitable for Ponds, 2-Inch FNPT, Black, 566257 : Patio, Lawn & Garden
![GreenLeaf 3" Heavy Duty Bulkhead Fitting - Best Prices on Everything for Ponds and Water Gardens - Webb's Water Gardens GreenLeaf 3" Heavy Duty Bulkhead Fitting - Best Prices on Everything for Ponds and Water Gardens - Webb's Water Gardens](https://webbsonline.com/media/ecom/prodlg/20072.jpg)
GreenLeaf 3" Heavy Duty Bulkhead Fitting - Best Prices on Everything for Ponds and Water Gardens - Webb's Water Gardens
![GreenLeaf 2" Heavy Duty Bulkhead Fitting - Best Wholesale Prices on Everything for Ponds and Water Gardens - Universal Pond Supply GreenLeaf 2" Heavy Duty Bulkhead Fitting - Best Wholesale Prices on Everything for Ponds and Water Gardens - Universal Pond Supply](https://universalpondsupply.com/media/ecom/prodlg/20070.jpg)