Hozelock Cyprio Replacement Bioforce 500 Replacement Filter Foam Bioforce 500 Replacement Foam. Hozelock Cyprio Bioforce Pond Filter Replacement Generic Foams Hozelock Bioforce 500 Models. Cleans pond water of particles and debris as well as providing a breeding ground for beneficial bacteria, aiding biological filtration. Easy to cut to size to fit most water garden pond filter boxes. Open Cell Format, each Filter Foam is 7.5 Inch Round by 2 Inch Thick, with a 2.5 Inch Center Hole, Two Foams Included ? Hozelock Bioforce 500 Generic Replacement Filter Foam ? Two Foams Included ? Open Cell Format, each Filter Foam is 7.5 Inch Round by 2 Inch Thick, with a 2.5 Inch Center Hole ? Made In UK - Guaranteed To Fit ? We sell a Variety of Replacement Filter Foams and Products for Hozelock Bioforce Filters We sell many aquatic products online, check out our store!!! Terms and Conditions. We use all approved forms for accepting payments. Sales Tax will be added to all shipments based on regulations. We always try to combine purchases, please contact us directly for a personal service. You will be notified on the day that your goods have been dispatched via e-mail with tracking which is used on all purchases. Please note that if there are any problems, contact us first via e-mail giving full details of any problem along with your user ID. We use USPS and UPS as our chosen carriers shipments to Hawaii, Alaska Puerto Rico may incur surcharges, contact will be made to advise before shipment at which point the order can be cancelled if desired. Orders placed on Saturday/Sunday Public Holidays will be processed next working day. We pride ourselves on excellent feedback, if any part of the buying experience is not to your satisfaction, please contact us to rectify before leaving feedback. By committing to buy you are agreeing to the Terms Conditions stated above.