PresAirTrol Side Spout Pressure Switch

Model: PR21120A – 21 Amp Rating

Product Overview

As a retailer of hot tub spa parts, I’m featuring this versatile PresAirTrol pressure switch. This adjustable DPDT (Double Pole Double Throw) switch offers excellent flexibility with its customizable pressure settings and side-mounted spout design.

Key Features

• 21 Amp rating
• Adjustable pressure range (1-5 PSI)
• DPDT configuration
• Side-mounted 1/8″ barb fitting
• Panel mount design
• Professional-grade construction

Technical Specifications

Specification	Detail
Manufacturer	PresAirTrol
Model Number	PR21120A
Amperage Rating	21A
Pressure Range	1-5 PSI (Adjustable)
Connection Type	1/8″ Barb
Switch Type	DPDT
Mounting	Panel Mount
Spout Configuration	Side Mount
Installation Hardware	#4 Self-Tapping Screws

Installation Features

• Panel mount design for easy installation
• Self-tapping #4 screw mounting
• Side-mounted barb fitting for convenient tubing connection
• Flexible positioning options
• Tool-free pressure adjustment

Performance Benefits

• Field-adjustable pressure settings
• Dual pole switching capability
• High current handling capacity
• Reliable switching action
• Precise pressure monitoring

Application Uses

• Spa control systems
• Equipment protection
• Dual circuit control
• Flow monitoring
• Safety shutdown systems

Design Advantages

• Side spout configuration for easy access
• Adjustable pressure threshold
• Dual pole switching flexibility
• Simple mounting system
• Durable construction

Adjustment Features

• Tool-accessible adjustment mechanism
• 1-5 PSI range selection
• Precise calibration capability
• Stable pressure settings
• Consistent operation point