Coyote 4″ Hose Adapter with Rectangular Flange (03-2318)

Overview

The Coyote 03-2318 Hose Adapter with Rectangular Flange creates a durable connection point for 4″ flexible hose in large-volume air systems.
Because the flange distributes load across a wider area, it prevents movement and air leaks caused by vibration.
The rectangular design also makes alignment and installation simple in panels and duct housings.

Function and Performance

This 4-inch adapter joins flexible hose to plenums, bulkheads, or ducts while maintaining smooth airflow.
The rectangular flange provides added rigidity, reducing stress on the hose joint.
As a result, the connection stays tight and stable under continuous operation.
In addition, the smooth internal bore minimizes pressure loss for quiet, efficient airflow.

Durability and Design

Coyote manufactures the 03-2318 adapter from high-strength ABS plastic engineered to withstand vibration, temperature changes, and UV exposure.
Because the material retains its shape, the adapter remains leak-free even after years of service.
The flange includes mounting holes for screws or rivets, allowing secure installation in any orientation.

Installation

Installation is fast and straightforward.
Position the rectangular flange over the duct or panel opening and fasten it with screws or rivets.
Attach the 4″ flexible hose to the back of the adapter and secure it with a clamp or tie.
The flange face sits flush, giving the assembly a clean, professional appearance.

Applications

The Coyote 03-2318 4″ Hose Adapter with Rectangular Flange is used in buses, RVs, construction cabs, ag equipment, and industrial HVAC systems.
It’s perfect for supply or return air connections that require a strong, panel-mounted hose interface.

Specifications

• Series: Hose Adapters with Rectangular Flange

• Part Number: 03-2318

• Hose Size: 4″ (101.6 mm)

• Flange Shape: Rectangular

• Material: Black ABS plastic

• Mount Type: Flange mount with screw holes

• Applications: Bus, RV, truck, off-road, and industrial HVAC

• Features: Smooth airflow, strong flange support, durable construction, easy installation