$ 18.00
Availability: Many In Stock

3” x 6” Manhole Covers

Fiberglass reinforced nylon Manhole/Curb Box uses 0.25” stainless machine screws. Bolt in lid, with Buna-N-Oring and threaded brass insert with a .125” wall HDPE skirt. 

  • Polymer Manhole
  • 6” in height
  • 3.875” round top
  • 3.5” bottom
  • SS screws with brass anchor inserts
  • H-20 load rated
  • Weight 9.9 oz

Enviro Design Products is an authorized distributor of Koby Environmental's high-quality American made products. Koby Environmental has been designing, engineering, developing and manufacturing environmental groundwater and soil testing equipment since 1989.

3” x 6” Manhole Covers

Fiberglass reinforced nylon Manhole/Curb Box uses 0.25” stainless machine screws. Bolt in lid, with Buna-N-Oring and threaded brass insert with a .125” wall HDPE skirt. 

  • Polymer Manhole
  • 6” in height
  • 3.875” round top
  • 3.5” bottom
  • SS screws with brass anchor inserts
  • H-20 load rated
  • Weight 9.9 oz

Enviro Design Products is an authorized distributor of Koby Environmental's high-quality American made products. Koby Environmental has been designing, engineering, developing and manufacturing environmental groundwater and soil testing equipment since 1989.

You may return new, unopened items within 30 days of delivery for a refund. To return a product, call us and ask for a Return Authorization Number. Write this number on the box near the shipping label. A return shipping address will be provided with the RMA number for the return shipment. You are responsible for the outgoing shipping and the return shipping charges. You should expect to receive your refund within four weeks of giving your package to the return shipper minus restocking fees and the original cost of shipping the product.
You may return new, unopened items within 30 days of delivery for a refund. To return a product, call us and ask for a Return Authorization Number. Write this number on the box near the shipping label. A return shipping address will be provided with the RMA number for the return shipment. You are responsible for the outgoing shipping and the return shipping charges. You should expect to receive your refund within four weeks of giving your package to the return shipper minus restocking fees and the original cost of shipping the product.

Manhole Covers, 3" x 6" Monitoring Well Manholes Manhole Covers, 3" x 6" Monitoring Well Manholes

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