LTWFITTING Lead Free Brass Fitting Coupler/Adapter 1/4 Inch Hose Barb x 1/2 Inch Female NPT Fuel Gas Water (Pack of 25)package include: 25 PCS Materies: lead free brass C69300 Tubing ID x Thread: 1 4" Hose Barb x 1 2" NPT female Net Weight: 37g pc Type: Female x Hose Barb

6 x Bio-foam filter

Custom designed and manufactured for Bluwave Internal Filter Bluclear 05

Net Weight: 43g/PC

Perfect for use on all floor types

Custom designed and manufactured for Laguna Pressure-Flo 700 UVC Filter

This filter pad is custom designed and manufactured for Eheim Classic 2213 / 250

Package Include: 4 filters

Custom designed and manufactured for the Fluval U3 Filtration Systems

5cm(sponges)

Packing include: 12 pcs fine foam filter

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

They are just Activated Carbon impregnated foam