Amazon.com: Lifegard Aquatics Standard Threaded Bulkhead Kit for Fish Aquariums – High-Impact Resistant PVC – Includes Bulkhead Fitting, Gasket, Lock Nut – Jet Black – 1-1/2 Inch : Toys & Games
Proline Series 1/2-in x 1/2-in Threaded Female Adapter Union Fitting in the Brass Fittings department at Lowes.com
NDS 4-in Schedule 40 PVC Adapter in the PVC Pipe & Fittings department at Lowes.com
LIFEGARD 2-in x 2-in Schedule 40 Adapter Insert PVC Adapter at Lowes.com
LIFEGARD 3/4-in x 3/4-in Schedule 40 Adapter Insert PVC Adapter at Lowes.com
LIFEGARD 1-in x 1-in Schedule 40 Adapter Insert PVC Adapter at Lowes.com
Proline Series 3/4-in x 3/4-in Threaded Female Adapter Union Fitting in the Brass Fittings department at Lowes.com
LIFEGARD 1/2-in Adapter Insert PVC Adapter at Lowes.com
LIFEGARD 1-in Schedule 40 PVC Adapter insert at Lowes.com
John Guest 1/4-in Push-to-Connect Coupling (10-Pack) in the Push to Connect Fittings department at Lowes.com
Everbilt 3/4 in. Polyoxymethylene Bulkhead Union With Washer Fitting 800479 - The Home Depot
Proline Series 3/4-in x 3/4-in Threaded Female Adapter Union Fitting in the Brass Fittings department at Lowes.com
Proline Series 1/2-in x 1/2-in Threaded Female Adapter Union Fitting in the Brass Fittings department at Lowes.com
Amazon.com: 1" Bulkhead ABS Threaded x Threaded NPT Standard 2-Pair (4-Pack) NBR Rubber Gasket : Industrial & Scientific
LIFEGARD 1-in Schedule 40 PVC Adapter insert at Lowes.com
LIFEGARD 1/2-in x 1/2-in Schedule 40 PVC Adapter insert at Lowes.com
LIFEGARD 1-in Schedule 40 PVC Adapter insert at Lowes.com