Description
Product Overview
The Kohler rubber coupling is engineered for sewage and effluent pumps, providing a reliable connection between pump discharge and piping systems. Constructed with high-quality rubber and reinforced with stainless steel clamps, it ensures durability and resistance to corrosion in demanding environments. Key specifications include product dimensions of 3 x 2.5 x 1.5 inches, a weight of 6.74 ounces, and model number 30-0238, making it compatible with various pump setups. The pre-drilled weep hole prevents air lock issues, enhancing pump efficiency and longevity in wastewater applications.

Usage
This coupling is ideal for residential and light commercial settings, such as basement sump pumps, septic tank systems, and effluent drainage in crawl spaces. It suits environments where reliable wastewater management is critical, targeting homeowners, plumbers, and contractors involved in maintenance or installation projects. The product handles sewage, gray water, and other non-corrosive fluids, ensuring smooth operation in frequent-use scenarios like flood prevention or routine waste removal.
Why Choose Us
Kohler’s reputation for quality plumbing products is reflected in this coupling, which offers superior materials and craftsmanship. The stainless steel clamps resist rust and provide a secure fit, while the rubber material maintains flexibility under pressure, reducing the risk of leaks. With a high customer rating of 4.7 stars from over 300 reviews, it stands out for its reliability and ease of installation, backed by StandardPlumbing’s manufacturing expertise to meet industry standards.
Key Features
- Durable rubber construction for long-lasting performance in wet conditions
- Stainless steel clamps that resist corrosion and ensure tight connections
- Pre-drilled weep hole to eliminate air lock and improve pump efficiency
- Easy threading into pump discharge for quick installation without tools
- Compact design measuring 3 x 2.5 x 1.5 inches, fitting standard pump setups
FAQ
What types of pumps is this coupling compatible with?
It is designed for sewage and effluent pumps, particularly those with standard discharge threads, and works well with residential and light commercial systems from various brands.
How does the weep hole function in this coupling?
The weep hole allows air to escape during pump operation, preventing air lock that can reduce flow efficiency and cause pump damage over time.
Is professional installation required for this product?
No, it can be installed by DIY enthusiasts as it threads directly into the pump discharge, though consulting a plumber is recommended for complex setups.
What materials are used in the clamps, and are they rust-proof?
The clamps are made from stainless steel, which provides excellent resistance to rust and corrosion in moist or chemical-exposed environments.
Can this coupling handle high-pressure applications?
It is suited for standard pressure in sewage and effluent systems but may not be ideal for high-pressure industrial use; always check pump specifications for compatibility.




Silicone Sink Strainer Removable Modern Kitchen Drain
Reviews
There are no reviews yet.