The Tuf-Tite® TS-RB4 (also referred to in search results in conjunction with "-CE" designation, for "Closed End", but it is an "open end" type seal used for pipes going through the wall, as opposed to the TS-402 which is used as a cast-in-place closed-end seal) is a rubber boot seal designed to provide a durable, watertight connection for pipes penetrating a septic tank wall, accommodating ground movement without leaking. 

Features:

Durable Construction: Made from high-quality rubber compounds for superior durability and longevity in demanding underground applications.

Watertight Seal: Creates a reliable, secure, watertight connection for inlet and outlet pipes to prevent groundwater infiltration and system exfiltration.

Flexibility: Flexible design accommodates normal ground movement and settling without compromising the seal's integrity.

Chemical & Environmental Resistance: Maintains performance integrity in varying soil and temperature conditions and is resistant to chemicals typically found in septic environments.

Easy Installation: Designed for straightforward installation in both precast and field applications.

Industry Compliance: Meets multiple rigorous ASTM standards for quality and performance in septic system use.