Spectrum™ MediaKap™ and MediaKap Plus HF Filters MediaKap-25; 10 to 25L; 185cm<sup>2</sup>; Inlet/Outlet: 1/4 to 3/8in. Hose Barb; w/Fill Bell Spectrum™ MediaKap™ and MediaKap Plus HF Filters | Fisher Scientific
Amazon.com - American Filter Company (TM Brand Water Filters (Comparable with Hoshizaki (R) 4HC-H BW 4400 HF-H HC-H HF PRO 3500 HCH-CTO HFH BW 4400 BW7 TOS Ice Maker Filter Food Service
Wonderful small filter kits for HF projects!
HF Filter Calculator
Band Pass Filter for HF and VHF Amateur Radio Bands | AmoghDesai.com