GEN 4 Retrofit Kit

(6 reviews) Write a Review

Product Overview

We are very excited to share that we are now offering:

The Kitty Tube Gen 4 Retrofit Upgrade Kit!

--this kit upgrades ALL Kitty Tubes purchased prior to Aug 2020, into the new GEN 4 model--


Being that condensation is one of the biggest issues of ANY outdoor insulated cat house, we recommend this kit as an important step to providing your cat the very best protection available.The purpose of this kit is to control all moisture caused by condensation from ever reaching the bedding of your cat! It replaces the bottom insulation of your current Kitty Tube with the new and improved bottom insulation system.

This Retrofit Kit includes:

1. specialized flow-through foam bottom layer
2. floor insulation disc

Here at The Kitty Tube™ we are always thinking about the safety and well-being of your kitty.

Our goal is to continue providing you with the highest quality, best insulated outdoor cat house on the market.


(6 reviews) Write a Review

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  • 5
    Gen 4 Retrofit

    Posted by Maryanne on 6th Jul 2023

    I have the Gen 3 Tube and got this upgrade. The Gen 4 Retrofit is a great improvement. I also got a replacement double insulation kit and straw. Kitty Tube is so well made and well designed. The straw is very clean and soft and lasts through many changes. My guest cat spends a lot of time in it and it is so nice to know she has a warm and safe shelter. Thank you for a great product and for caring so much about the cats!

  • 5
    gen 4 retrofit kit

    Posted by Unknown Customer Unknown Customer on 25th Dec 2020

    great improvement especially that it absorbs water. My kitty tube is outside and it rains heavy sometimes.

  • 5
    Gen 4 Retrofit Kit

    Posted by Elyse Ross on 17th Dec 2020

    You are the best, caring company! The condensation was definitely a "big" problem. I installed this for 3 feral kittens that stay in The Kitty Tube quite a bit. Thank you for your great company!

  • 5
    Clear Flap Door Replacement

    Posted by Elyse Ross on 17th Dec 2020

    This is great to keep out wind, rain & snow. We got 8" of snow & wind yesterday & no snow in The Kitty Tube! I recently purchased a spare, just to have on hand.

  • 5
    Gen 4 retrofit kit (for the bottom)

    Posted by Kim on 15th Dec 2020

    I added this to an existing older generation kitty tube and it seems to have helped a good bit with retaining warmth.

  • 5
    Great Upgrade

    Posted by Elizabeth M. on 26th Nov 2020

    I added this Retrofit Kit to my Gen 3 Kitty Tube. It was easy to install and keeps my feral cats dry. I definitely recommend getting it.

Our Kitty Tube Outdoor Insulated Cat Houses In Action!