Pleated Cartridge with Large Surface AreaIncreased Capacity for Sediment RemovalHigh Flow RateMicron Rating Molded into End CapFlow-Max industrial quality pleated sediment filters in all standard 10", 20", and big blue sizes. Available in 0.35 & 1 micron absolute (99.9% removal), and nominal ratings of 1, 5, 20, and 50 microns. Each cartridges is individually wrapped.Flow-Max filter cartridges outperform wound, spun, melt blown, or resin bonded filter elements because these cartridges are pleated to provide increased surface area and longer life. Further saving are provided because the 100% synthetic filter media is cleanable down to 5 microns.Cartridges rated for temperatures from 40 - 125 °F. Standard 10" and 20" cartridges have color-coded micron rating, end caps. Big Blue sizes have micron rating embossed in end cap.Features and benefitsPleated for increased surface areaLong life / reduced filtration costsGreater dirt holding capacityCleanable and reusable, 5 µ and up (Standard Media)Wide range of micron ratings availableShrink wrapped for purity  Flow-Max Filter Cartridges InformationFilter MediaSynthetic (100% cellulose-free)End CapsMolded UrethaneCenter TubesPVCTemperature Range40°F - 140°F (4.4°C - 60°C)Recommended Change Out20-30 PSID*Maximum Pressure Change40 PSID*Flow rate per 20" cartridge13 GPM  * Pounds per square-inch dropThis cartridge replaces:Harmsco HB-20-0.35W   Payment Details There is a sea of sellers on line and you have chosen me. I amreally honored. I greatly appreciate you. I take Paypal and major credit cards for all the transaction at this time. Thank you very much. Shipping Details I use several warehouses to ship orders out for me. They use UPS, USPS and fedEx. HealthyBowls Seeds Sprouters Stainless Steel Pots Water Distillers Juicers Air Purifier Grain Mills Pasta Cookers Vegetable Steamers Alkaline water Ionizers Food Dehydrators Health Products Juicer Blender Chopper Fermenting Pots Ribbons Canning Shaved Ice Accessories Emergency Preparedness Meat Grinder Sausage Stuffer Popcorn Kitchen Reverse Osmosis Water System PurePro Filters Cartridges FloJet Water Dispensers Our Refund Policy I really appreciate your business. I want to thank you for your understanding and cooperation in advance. I have a 30 days return for most of products that I sell unless otherwise stated. If there is damage to the product due to shipping, please keep all you package in addition to the products. Email to get the claim process started as soon as possible. Any other reasons for return, buyers will have to pay the actual shipping cost to ship the item back. Purchase money minus the shipping cost will be refunded. 15% restocking fee will be deducted from the original purchase as well. If the product is defective, please call the manufacturer first to see if they can resolve the issue before the product is returned. Please email me first if you have any issues with your purchase. Thank you for your communication. Our Feedback Policy There is a sea of sellers on line and you have chosen me. I am really honored. I greatly appreciate you. I would be grateful if you spend time to write about your shopping experience.  I like to know that I have done a good job.   Please give me five star rating. Thank you from the bottom of my heart. -     Feedback   -   About Me   -   Other products   -