Cherioll WEAVERBIRD Lot de 4 Rouleaux de Mousse pré-filtrante pour Aquarium, Large

Q: Is the a fine or course sponge ?

The sponges are fine gauge. Fit pretty good on intake.

Q: Does the hole go all the way through the sponge, or is it closed at one end?

Hello, one end of the sponge is closed. If you need to open on both sides, can cut the closed end with scissors.

Q: Will this fit on intake for a marineland 350?

Not at all.. I originally bought them for my Intake for my canister and had to cut two open and sew them on.. I also have a marineland 350 and it's bigger than what I am using them for . Unless you cut like three maybe open and did it that way. But these are pretty tiny.

Q: Will the large size fit the intake tube for a Fluval 107 canister filter?

Hi, thank you so much for your interest in our Pre-Filter Foam Sponge Roll. You can refer to our two sizes to choose. Connection diameters are 10mm/0.39" and 20mm/0.79" respectively.