LTWHOME Bio-Foam Filter Pads Fit for Fluval 304/305/306/404/405/406(Pack of 12)Package Include: 12PCS ( 6L & 6R) suitable for Hagen Fluval 304 305 306 404 405 406 Filtration Systems Good for freshwater & marine environments

Custom designed and manufactured for the Eheim Classic 2215 / 350 filtration systems

Package Include: 50PCS ( 25L & 25R)

12 x fine pads

Packing include: 12 pcs coarse filter pad

Approx size:22

405 Filtration Systems

12 x Carbon filter

Approx size:130mm x 60mm x 13mm

Good for freshwater and saltwater environments

They are just Activated Carbon impregnated foam

Custom designed and manufactured for Eheim 2616260 Professional Pro 2 2226/2326/ 2228/2328/2026/2126/2028/2128 and Experience 350 filtration systems

Foam size:125 mm x 125 mm x 48 mm