LTWFITTING Bar Production Stainless Steel 316 Pipe Fitting 1/2 Inch x 3/8 Inch Female NPT Reducing Coupling Water Boat (Pack of 300)package include: 300PCS Type: Female Reducing Coupling Materies: Stainless Steel 316 Thread: 1 2" x 3 8" NPT Female Net Weight: 40. 42g pc

Net Weight: 82g/pc

Thread:3/8"x 1/4"Male NPT

Pack include: 12pcs foam pads without plastic frame

Net Weight:78g/pc

Tube Size:3/8 Inch OD Thread:1/4 Inch Male NPT

The wool pad filters smallest particles out of the water

the other microfiber side helps clean the floor softly and effectively

Tube Size 1:5/8 Inch OD Tube Size 1:5/8 Inch OD Thread: 1/2 Inch Male NPT

Thread: 3/4" NPT Female

Net Weight: 63g/PC

Tubing ID x Thread: 3/8" Hose Barb x 1/2" NPT female

aiding biological filtration