$10 each, Large pore large capacity sponge filters of high quality with better design than Lustar's Hydro-sponges. Air hose connects at weighted base, not top of sponge like Hydro-sponge, and plastic air diffuser (which will never clog, just brush and rinse) disperses air giving better water flow through sponge. Also this plastic core is made with a stronger design and holds up better under normal use than the core of the Hydro-sponge filters (the cores on my hydro-sponges invariably broke/cracked after about a year or two of use).
See photos below (filter does not come with air hose, shown in photo below for demonstration purposes only). Shipping available at cost. Accepted methods of payment are by c2it (www.c2it.com, free to e-mail money within the US) or money order. Paypal will be accepted only if you do not pay with a credit card but through a bank account or a Paypal account credit. E-mail inquiries to: semav@core.com.
See photos below (filter does not come with air hose, shown in photo below for demonstration purposes only). Shipping available at cost. Accepted methods of payment are by c2it (www.c2it.com, free to e-mail money within the US) or money order. Paypal will be accepted only if you do not pay with a credit card but through a bank account or a Paypal account credit. E-mail inquiries to: semav@core.com.