Bulkhead fitting that accepts threaded fittings on the wet side and slip on the dry side.
Ideal Vacuum Swagelok Bulkhead Reducing Union, 3/8 in. x 1/4 in
Lifegard Aquatics R270904 3/4-inch Double Threaded Bulkhead for
Expel Coral Cleanse - 8oz
Bulkhead fitting that accepts threaded fittings on the wet side and slip on the dry side.
Standard Thread Bulkhead Fitting (2 Inch)
Lifegard Aquatics ProMax 55W Protective Sleeve
3/4'' Bulkhead ABS Slip x Thread
Easily add an overflow to your aquarium with the Eshopps Eclipse - Designed for medium tanks.
Eshopps Eclipse Overflow Kit (Medium)
Brass bulkhead fitting tank connector 1 male x 3/4 female thread
Lifegard Aquatics UV Sterilizer Replacement Bulb - 15 Watt
HAYWARD® BFA3007TES BFA3007TES
4 Pack - 3/4 Threaded X Threaded Bulkhead (AM Brand)
2Pcs PVC 3/4 Inch Thread Water Tank Bulkhead Fitting Adapter with
3/4 PE Tank Connector Outlet Bulkhead Fitting
1PC 1/2'' Female 3/4'' Male Solid Brass Bulkhead Water Tank