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The Toilet Paper Oil Filter Company

We are the Manufacturer and sales of the REFINER by-pass oil filter invented by John Frantz.




You have come to the manufacturing site for the Refiner by John Frantz Toilet paper filters. This is the best product on the market for cleaning your engine oil and reducing the need for expensive oil changes.

The Refiner Oil Filter by John Frantz is not a new product. What is new is the redesigned features. The product actually came to us in the late 50s and early 60s. Your father or grandfather probably had one on his 55 Chevy, GTO, hot rod, or even semi-tractor trailer rig. Today, it is used on pretty much all automobiles and trucks including Chevrolet Duramax, Ford Powerstroke, and Dodge Cummins diesel engines.

The Refiner Oil Filter by John Frantz is also appropriate for smaller applications including generators, tractors, yard tractors, riding lawnmowers, boats, dune buggies, trucks, motorcycles and more. Many customers also use it for static filtration uses to rehab "veggie oil" and used engine oil for purposes in diesel fuel applications.

The Refiner by John Frantz will keep your engine analytically clean when used properly and obeying proper element change frequency.

The technology of the Refiner Oil Filter is such that there are NO INTERNAL MOVING PARTS to wear out and it is easy to install on most any vehicle. It also works in any position - straight up, upside down, or even sideways. Changing the element might be a consideration when mounting it sideways but occasionally with today's compact engines under the hood, that is the only way to mount it. Some even mount it in the bed of their pickup truck or in the vehicle trunk of a vehicle. You are only limited by the length of oil line hose you use.

If you even have a question about our products or installation procedure, just call and ask assistance from our friendly reliable staff. All orders are taken by phone for your privacy and protection.

CALL (951) 897-4153.

Please do not try to use the shopping cart. All orders are taken by phone for personal service. Ask for Ed.

Please note, we are on the West Coast. If you are on the East Coast, please do not call us until after 11 a.m.

 This business is recognized by VAMBOA (Veterans and Military Business Owners Association).

Ed served in the military During the Cold War in the U.S. Navy Submarine ("Silent Service") aboard the nuclear submarine USS Will Rogers (SSBN659), Gold Crew. He is a qualified submarine sonar technician.

He has an honorable discharge after five Cold War deterrent Polaris Missile top secret patrols acting as a Submarine Sonar Technician Watch Supervisor while totally submerged for three-month long patrols.

Ed is also on the Board of Directors for his hometown Pinon Hills (California) Chamber of Commerce.