⚡ Waterway 48-Frame Hi-Flo Jet Pump – 2.0 HP Dual Speed – 2″ x 2″ Connections

Compact dual-speed Hi-Flo pump for versatile operation in space-limited installations

♨️ Product Overview

The Waterway 48-Frame 2.0 HP Dual Speed Hi-Flo Pump with 2″ x 2″ connections is a compact yet versatile jet pump designed for spas and hot tubs where space is limited but dual-speed operation is essential. The “Hi-Flo” designation indicates this pump is optimised for enhanced water flow performance, delivering impressive jet power from the compact 48-frame design with the added benefit of two-speed operation.

Operating at 230V/50Hz with a 1.5 kW power rating, the pump features a two-speed motor producing 0.63 HP at low speed and 2.11 HP at high speed. Low speed runs at 1,440 RPM drawing just 2.2A for quiet heating circulation, whilst high speed runs at 2,850 RPM drawing 6.8A for powerful jet performance. The split-capacitor design (16 µF for low speed, 30 µF for high speed) ensures reliable starting and operation on both speeds. The 4 HP-rated wet-end impeller delivers excellent water throughput.

The pump features 2-inch x 2-inch standard Waterway union connections (sold separately), providing excellent compatibility as a replacement for many 48-frame pump brands including Vico, Aqua-Flo, Sta-Rite, GE, A.O. Smith, Emerson, and Hydroair. Ideal when there is not enough room to install a 56-frame pump. Electrical wiring requires 2 live, 1 neutral, and 1 earth – wiring is not included and must be reused from your existing installation.

⭐ Key Features

✅ Hi-Flo Design – Optimised for enhanced water flow performance

✅ Compact 48-Frame – Ideal for limited space installations

✅ Dual Speed Motor – Low speed for heating, high speed for jets

✅ 0.63 HP / 2.11 HP – Motor power at low/high speeds

✅ 1,440 / 2,850 RPM – Dual speed motor operation

✅ 4 HP Wet-End Impeller – Excellent flow capacity

✅ 1.5 kW Power Rating – Efficient operation

✅ 230V / 50Hz – UK standard electrical supply

✅ Split Capacitor – 16 µF (low) / 30 µF (high) for reliable operation

✅ 2″ x 2″ Connections – Standard spa plumbing compatibility

🔧 Technical Specifications

Specification	Value
Pump Type	Massage / Jet Pump – Dual Speed (Hi-Flo)
Brand	Waterway
SKU	PW-W4822
Frame Size	48-Frame
Motor Power (Low Speed)	0.63 HP
Motor Power (High Speed)	2.11 HP
Wet-End Impeller Rating	4 HP
Power (kW)	1.5 kW
Speed Settings	Dual Speed
Voltage	230 V
Frequency	50 Hz
Amperage (Low Speed)	2.2 A
Amperage (High Speed)	6.8 A
RPM (Low Speed)	1,440 RPM
RPM (High Speed)	2,850 RPM
Capacitor (Low Speed)	16 µF
Capacitor (High Speed)	30 µF
Plumbing Size	2 inch x 2 inch (2″ x 2″)
Unions	Sold separately (Waterway 2″)
Electrical Cable	Not supplied – reuse existing
Wiring Requirement	2 live, 1 neutral, 1 earth
Length	360 mm
Width	175 mm
Height	220 mm

🔌 Electrical Requirements

Electrical Specification	Low Speed	High Speed
Supply Voltage	230 V	230 V
Frequency	50 Hz	50 Hz
Motor Power	0.63 HP	2.11 HP
Full Load Amps	2.2 A	6.8 A
Motor Speed	1,440 RPM	2,850 RPM
Capacitor	16 µF	30 µF

Component	Specification
Power Rating	1.5 kW
Electrical Cable	Not supplied – reuse existing
Wiring Configuration	2 live, 1 neutral, 1 earth
Recommended MCB	10 A minimum
Recommended Cable	1.5 mm² minimum

⚠️ IMPORTANT ELECTRICAL SAFETY:

All electrical work must be carried out by a qualified electrician in accordance with UK wiring regulations (BS 7671). Hot tubs require RCD protection (30mA). Ensure proper earthing and bonding of all electrical components. Two-speed pumps require 2 live wires (one for each speed winding), plus neutral and earth – consult a qualified electrician. The electrical cable is not supplied – your existing wiring from the previous pump must be reused and inspected before connection.

🔗 Compatibility Guide

This Pump Specifications:

📍 Model: Waterway 48-Frame 2.0HP 2-Speed Hi-Flo 📍 Motor: 0.63 HP (low) / 2.11 HP (high) 📍 Wet-End: 4 HP impeller rating 📍 Frame: 48-Frame (compact) 📍 Voltage: 230V / 50Hz 📍 Current: 2.2A (low) / 6.8A (high) 📍 Plumbing: 2 inch x 2 inch 📍 Dimensions: 360mm × 175mm × 220mm

Plumbing Connection Detail:

Port	Size
Suction	2 inch (2″)
Discharge	2 inch (2″)

Two-Speed Advantage:

Speed	RPM	HP	Amps	Use
Low	1,440	0.63	2.2	Heating circulation
High	2,850	2.11	6.8	Boost jets

48-Frame vs 56-Frame Comparison:

Feature	48-Frame (This Pump)	56-Frame
Length	360 mm	430 mm
Width	175 mm	200 mm
Height	220 mm	240 mm
Best For	Space-limited installs	Higher power needs

Cross-Compatible Pump Brands:

This pump is designed as a replacement for 48-frame models from:

• Vico
• Aqua-Flo
• Sta-Rite
• GE
• A.O. Smith
• Emerson
• Hydroair
• And other 48-frame pumps

Application:

This pump is designed for both heating circulation (low speed) and boost jet operation (high speed) in hot tubs, particularly when there is not enough room to install a 56-frame pump.

⚙️ Installation Requirements

Pump Dimensions:

Dimension	Measurement
Length	360 mm
Width	175 mm
Height	220 mm

Plumbing Connections:

Connection	Size	Notes
Suction	2 inch	Standard Waterway unions (sold separately)
Discharge	2 inch	Standard Waterway unions (sold separately)

Installation Notes:

⚠️ Unions sold separately – order Waterway 2″ unions as required

⚠️ Electrical cable NOT supplied – reuse existing wiring

⚠️ Two-speed motor requires 2 live wires (one per speed winding)

⚠️ Verify 48-frame mounting bolt pattern matches existing pump

⚠️ Split capacitor design (16 µF + 30 µF)

⚠️ Pump must be installed below water level (flooded suction)

⚠️ Never run the pump dry

⚠️ Ensure proper electrical bonding to earth

💡 Hi-Flo design provides enhanced water flow performance

💡 Compact design fits tight equipment compartments

💡 Ideal replacement when 56-frame won’t fit

🛠️ Maintenance Guide

Routine Maintenance:

Task	Frequency	Notes
Check for leaks	Monthly	Inspect unions and pump seal
Test both speeds	Monthly	Verify low and high speed operation
Check motor operation	Weekly	Listen for unusual sounds
Verify jet performance	Monthly	Ensure strong water flow on high
Inspect wiring	Annually	Check all connections
Clean pump strainer	As needed	Remove debris

Warning Signs – Consider Replacement If:

• One speed stops working (possible winding or capacitor failure)
• Motor hums but doesn’t start
• Unusual noise or vibration
• Motor overheating
• Significantly reduced jet/flow power
• Pump trips the circuit breaker
• Visible seal leakage

Capacitor Information:

The 2-Speed Hi-Flo uses a split-capacitor design:

• 16 µF capacitor (low speed)
• 30 µF capacitor (high speed)

Both capacitors must be functioning correctly for reliable two-speed operation.

🎯 Ideal Applications

Application	Suitability	Notes
♨️ Heating Circulation	Excellent	Low speed for 24/7 operation
♨️ Boost Jets	Excellent	Hi-Flo design for enhanced performance
♨️ Space-Limited Installs	Excellent	Compact 48-frame design
♨️ Energy Efficiency	Excellent	Low speed draws just 2.2A
♨️ Pump Replacement	Excellent	Universal 48-frame compatibility
♨️ 56-Frame Alternative	Excellent	When larger pump won’t fit

❓ Frequently Asked Questions

Q: What is the power rating of this pump? A: The pump has a 4 HP-rated wet-end impeller. The motor produces 0.63 HP at low speed and 2.11 HP at high speed, drawing 2.2A (low) and 6.8A (high) at 230V/50Hz.

Q: What does “Hi-Flo” mean? A: Hi-Flo indicates this pump is optimised for enhanced water flow performance, delivering greater water throughput compared to standard models of the same power rating.

Q: What is the difference between this pump and the single-speed Hi-Flo (PW-W4821)? A: This dual-speed model offers both heating circulation (low speed at 2.2A) and boost jet operation (high speed at 6.8A), whilst the single-speed model runs at full power only. The dual-speed version is more versatile and energy-efficient for 24/7 operation.

Q: Why choose a 48-frame over a 56-frame pump? A: Choose a 48-frame pump when your hot tub equipment bay doesn’t have enough space for a larger 56-frame pump. The 48-frame is 70mm shorter (360mm vs 430mm) and narrower (175mm vs 200mm).

Q: What are the two speeds used for? A: Low speed (1,440 RPM) is used for heating circulation – running continuously to maintain water temperature. High speed (2,850 RPM) delivers powerful jet performance for hydrotherapy and boost operation.

Q: What size are the plumbing connections? A: The pump uses 2-inch suction and 2-inch discharge with standard Waterway unions, which are sold separately.

Q: Does this pump come with unions? A: No, the Waterway unions are sold separately to allow flexibility for your specific installation.

Q: Does this pump come with an electrical cable? A: No, the electrical cable is not supplied. You must reuse the existing wiring from your previous pump.

Q: What capacitors does this pump use? A: The 2-Speed Hi-Flo uses a split-capacitor design with 16 µF for low speed and 30 µF for high speed.

Q: What wiring is required for this pump? A: The pump requires 2 live wires (one for each speed winding), 1 neutral, and 1 earth. Two-speed pumps have different wiring than single-speed – consult a qualified electrician.

🏆 Why Choose the Waterway 48-Frame 2.0 HP Hi-Flo Dual Speed Jet Pump (2″ x 2″)

✅ Hi-Flo Performance – Enhanced water flow design

✅ Versatile Dual Speed – Circulation plus boost jets

✅ Compact Design – Only 360mm long for tight spaces

✅ 4 HP Wet End – Excellent flow capacity

✅ Energy Efficient – Low speed draws just 2.2A

✅ 2,850 RPM High Speed – Powerful jet performance

✅ Universal 48-Frame Compatibility – Replaces multiple brands

✅ 56-Frame Alternative – When space is limited

🤝 Why Buy From Parts4Tubs

✅ UK-based company with expert local support

✅ Fast UK delivery options available

✅ Knowledgeable advice from spa industry specialists

✅ Competitive pricing

✅ Full warranty support

✅ Replacement seals, capacitors, and unions available

✅ Easy returns within 30 days

✨ Summary

The Waterway 48-Frame 2.0 HP Dual Speed Hi-Flo Pump with 2″ x 2″ connections is a compact yet versatile jet pump optimised for enhanced water flow performance with dual-speed operation. Features a two-speed motor with 0.63 HP at low speed (1,440 RPM, 2.2A) and 2.11 HP at high speed (2,850 RPM, 6.8A), paired with a 4 HP-rated wet-end impeller. Operating at 230V/50Hz with a 1.5 kW power rating and split-capacitor design (16 µF + 30 µF). The compact 48-frame design measures only 360mm × 175mm × 220mm – ideal when there is not enough room to install a 56-frame pump. Designed as a direct replacement for 48-frame pumps from Vico, Aqua-Flo, Sta-Rite, GE, A.O. Smith, Emerson, Hydroair, and other brands. Requires 2 live + 1 neutral + 1 earth wiring. Standard Waterway 2″ unions sold separately. Electrical cable not supplied – reuse existing wiring. Ideal for versatile dual-speed operation where space is limited.