• Suitable for Provide filtration in Pond, Aquarium, Freshwater, and Marine environments
• Outer Length: 5.91 inch * Inner Length: 4.13 inch; Intake hole is not all the way through
• Qzbhct pre filter sponges are designed for canister filters for Aquaclear 70 and 110 filters; Can also work for Aqueon and other larger hang on back filters as well
• Advantage: The Replacement Foam Pre-Filters Fits inside your Pre-Filter to help reduce pump clogging
• Easy to replace: Easy to use, sponge cover directly onto the water inlet of your filter

About this item

• Solid wood material & Suitable for all breeds: Our dog ramps are made of solid wood, which is not easy to deform and provides better support compared to foam ones. The product is easy to clean and can be rinsed under faucet. It is suitable for puppies, short-legged dogs, medium-sized dogs, some large dogs and all cats
• Anti-slip Bottom & Easy to grip: Our dog stairs for small dogs bottom is anti-slippery and we also send you self-sticky pads to increase friction between ramps and stairs so make your dogs safety. The non-slip carpet on the sloping surface provides great friction for using safely
• Suitable for most staircases & Care for your pets: Our small dog ramp size is 11.8*9.8*5.9 inches (L*W*H) and is compatible with most stairs heights (most around 7 inches) at home. Please measure your stair height before choosing stair ramp
• Sturdy design & High load-bearing capacity: Stable design make sure good support for pets when climbing or descending. Our dog ramp can hold up to 154lbs. But due to the ramp's width of 11.8Inches, we recommend that you increase the width by installing 2 ramps in one step and right next to each other to ensure the safety of your large pet
• Boost pets confidence & Be patient with your pets: Keep your small stairs for your small dogs and skip the return process! Please understand some pets may be unfamiliar with dog ramp so please be more patient and encourage them when training. Give them more time and hope they will grow up