For more detailed information including product search/cross-reference by part number, measurement and manufacturer visit Pleatco's website at www.pleatco.com. You can also download a free product search app for your smart phone! If you aren't able to find the filter you are looking for on our website, we might be able to special order it for you. Just send us an email at: Lynde-CS@tessmanseed.com with the following information: 1.) Unicel or Pleatco number, 2.) Quantity, 3.) Ship to address. * Please note: We can have special order filters shipped directly to you or your customer. Drop ships are typically delivered within 7-10 business days (depending on availability). If you prefer to get a quote first, please specify this in your email.