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Rhino Stainless Steel Boltless Gruvlok / ANSI Flange Tank Fittings w/EPDM Gasket

Rhino Stainless Steel Boltless Gruvlok / ANSI Flange Tank Fittings w/EPDM Gasket

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Rhino’s line of Boltless Stainless Steel Gruvlok & ANSI Flange Tank Fittings offer the strength and holding power of a bolted tank fitting without the bolts!  Available in 6” and 8” sizes in standard Gruvlok with or without 150LB ANSI flange adapters.  Our unique patented design keeps all the fitting hardware on the outside of the tank…where it should be.  Our “Boltless”design makes installations faster, easier, and more precise than any other tank fitting on the market today.  Installers love not having to drill bolt holes through the tank wall which assures a leak proof seal…it’s that simple.  

Unmatched in reliability and ease of installation, Rhino Boltless Tank Fittings are the #1 choice of professional tank installers across the country.  Whether for chemical, industrial, or agricultural applications, or mission critical tank & piping installations, Rhino has the right tank fitting for your project.  With over 40 years’ experience, we have the knowledge and expertise to make your tank installations a lasting success.  Give us a call today, our friendly and knowledgeable staff is ready to help.

  • INDUSTRIAL STRENGTH
  • TYPE 316L STAINLESS STEEL
  • FULL NIPPLE (Gruvlok x Gruvlok)
  • With or WITHOUT 150LB ANSI FLANGE ADAPTERS
  • DIE-CUT GASKETS (EPDM or VITON)
  • AVAILABLE SIZES: 6”and 8”
  • LIFETIME WARRANTY
  • MOST ORDERS SHIP WITH-IN 24 HRS.
  • CALL FOR DISCOUNT PRICING

Learn how to install our Rhino Boltless Tank Fittings!

6 Boltless Fitting Installation

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“The installation of this ladder was very easy.  We stood it up against the tank, connected the strap’s to one side of the ladder, which made it really quick and easy to run the straps around the tank. Once done, it was easy to make adjustments for straightness before tightening the ratchets. All in all, it was very fast, very easy, and we are very happy with it… and it covers our compliance for safety!  

Thank you American Tank Company

Johnnie Gonzales
Northern Circle Indian Housing Authority
10,000 Gallon Norwesco Poly Tank

Poly water tank with a ladder on a grassy area

These ladders are fast & easy to install and maintain.  I am very satisfied with them…thank you!"

Bobby Foehr
Coast Hills Farms
2500 Gallon Poly Tank

Large blue water storage tank with a ladder in a natural setting

“The ladder is very stable and makes access to the tank so much faster and safer. I am very pleased with my purchase.”

Ron A
Los Gatos, CA
5,000 Gallon Norwesco Poly Tank