# Rinnai KMC Recess Box for Exterior Tankless Water Heater

**Brand:** [Rinnai](https://shop.coreranger.com/brands/Rinnai)
**SKU:** RGB-CTWH-4
**Price:** $645.99 · in stock
**URL:** https://shop.coreranger.com/product/rinnai-kmc-recess-box-for-exterior-tankless-water-heater-308666226

## Specifications

| Spec | Value |
|---|---|
| Model # | RGB-CTWH-4 |
| Material | Steel |
| Pack Size | 1 |
| Internet # | 308666226 |
| Returnable | 90-Day |
| Store SKU # | 1004113804 |
| Product Type | Cabinet |
| Finish Family | White |
| Product Depth (in.) | 44 in |
| Product Width (in.) | 12 in |
| Product Height (in.) | 22.75 in |
| Manufacturer Warranty | 1 Year limited warranty |

## Description

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

• For Sensei SE+ tankless water heaters and M-series boilers
• Allows 8 tankless water heaters to share the same vent system
• Sturdy steel construction ensures durability