Giraffe Tools Grandfalls PRO Retractable Pressure Washer - 3700 PSI Wall Mount
The Giraffe Tools Grandfalls PRO is a 1800W wall-mounted retractable pressure washer with brushless induction motor rated at 3700 PSI maximum / 2700 PSI rated pressure and 1.6 GPM maximum / 1.2 GPM rated flow — featuring a 100ft replaceable ultra-soft auto-rewind hose, 78–80 dB operation, GFCI power cord, SiMn spring rated to 8,000 cycles, and wall-mounted storage for gun, nozzles, and hose. Ships pre-assembled, ready in 5 minutes. Weight: 59.5 lbs (27 kg). Coverage: up to 31,400 ft².
Brushless Induction Motor. 2700 PSI Rated. 78 dB. 100ft Auto-Rewind — The Grandfalls Lineup’s Top-Spec Unit.
The PRO is the highest-specification Grandfalls model — three upgrades over the G20 PRO that matter for demanding use: the brushless induction motor runs cooler and lasts longer than a series-wound motor under sustained load; the 2700 PSI rated pressure (vs. 1900 PSI on the G20 PRO) handles concrete, composite decking, and heavy soiling that lower-rated units struggle with; and the 78–80 dB noise level is roughly half the acoustic energy of the G20 PRO’s 90–93 dB — a meaningful difference for early-morning or late-evening use in residential areas. The 100ft hose covers 31,400 ft² from a single wall mount. The ultra-soft grey hose is replaceable — when the hose wears out, you replace the hose, not the unit. The GFCI power cord meets code requirements for outdoor electrical use. SiMn spring rated to 8,000 retraction cycles.
See it in action
Motor, Pressure, Flow & Electrical Specifications
- Model: HP174-G30 (SKU: HP174-G30)
- Motor: Upgraded brushless induction motor — longer lifespan and lower heat under sustained load vs. series-wound
- Power: 1800W
- Voltage: 120V ~ 60Hz, 15A — standard household circuit
- Power Cord: 6ft with GFCI — meets outdoor electrical code requirements
- Maximum Pressure: 3700 PSI
- Rated Pressure: 2700 PSI (sustained operating pressure)
- Maximum Flow: 1.6 GPM
- Rated Flow: 1.2 GPM
- Noise Level: 78–80 dB — approximately 3× quieter than gas pressure washers
- TTS Energy-Saving Technology: Pump efficiency optimization for heavy-duty sustained use
Hose, Spring & Coverage:
- Hose Length: 100ft (30m) × 1/2in — auto-rewind, single tug retracts full hose
- Hose Type: Replaceable ultra-soft grey hose — replace hose independently when worn, no unit replacement needed
- Lead-in Hose: 6ft
- Spring: SiMn metal spring — 8,000 cycle lifetime (lab tested)
- Coverage Area: Up to 31,400 ft² from single wall mount
Water & Temperature:
- Suggested Water Inlet Pressure: 60–116 PSI (0.4–0.8 MPa)
- Max Water Inlet Temperature: 140°F (60°C)
- Operating Temperature Range: 32°F to 140°F
Unit & Mount:
- Dimensions: 23.34" × 19.17" × 13.89"
- Weight: 59.5 lbs (27 kg)
- Casing: Bach Silver with side cooling holes — UV-resistant
- Mount Type: Wall-mounted with fixed base; built-in storage for gun, nozzles, and hose
- Drill Size: 1/2" or 12mm
- Assembly: Pre-assembled — hose pre-installed, ready in 5 minutes from unboxing
- Usage Rating: Residential
- Brand: Giraffe Tools
Grandfalls PRO vs. G20 PRO — Choosing the Right Model
- Grandfalls PRO (this model): Brushless induction motor, 2700 PSI rated, 100ft hose, 78–80 dB, 140°F max operating temp, GFCI cord, replaceable hose, 8,000-cycle spring. Best for: large properties, sustained heavy-duty use, noise-sensitive environments, buyers who want the highest-spec wall-mount unit.
- Grandfalls G20 PRO: Series-wound motor, 1900 PSI rated, 65ft hose, 90–93 dB, 104°F max operating temp, 180° rotating bracket. Best for: vehicle detailing at lower rated pressure, buyers who need the 180° rotating bracket for multi-direction coverage from one mount point. See the Grandfalls G20 PRO.
- Grandfalls Essential: Mid-tier option — see the Grandfalls Essential for specs and comparison.
Installation Requirements & Use Case Considerations
- Wall Mounting: Requires 1/2" or 12mm drill — wall fixed base and mounting hardware included; verify stud or masonry substrate before installation
- Circuit Requirement: 120V / 15A standard household circuit — GFCI cord included; do not share circuit with other high-draw appliances during operation
- Power Cord Reach: 6ft GFCI cord — verify outlet proximity to mount location; extension cords not recommended for sustained pressure washer operation
- Water Source: 6ft lead-in hose — verify hose bib proximity to mount location
- Hose Replacement: Ultra-soft grey hose is replaceable — when hose wears, order replacement hose; no need to replace the full unit
- Noise: 78–80 dB — suitable for residential use at most hours; quieter than a standard shop vac
- Operating Temperature: Rated to 140°F — suitable for warm-water inlet connections; drain unit before temperatures drop below 32°F
- Storage: Built-in wall compartments for gun, nozzles, and hose — no separate hooks or storage required
- What's in the Box: Grandfalls PRO with 100ft hose pre-installed, wall fixed base + mounting hardware, metal-connector foam pot, high-pressure gun handle, high-pressure gun stick, 4× quick-connect nozzles, nozzle cleaner, 6ft lead-in hose, fasteners kit, product manual
The GarageForm Difference: Technical Authority, Not Just a Catalog
Technical Screening: We don’t list pressure washing products without vetting them. The Grandfalls PRO has been verified for rated vs. maximum pressure accuracy, brushless motor specification, 8,000-cycle spring rating, GFCI cord compliance, and hose replaceability to ensure the performance data on this page reflects real-world operation.
Direct Expert Support: If you need assistance comparing the PRO to the G20 PRO or Essential for your specific use case, planning mount location for 100ft coverage, or confirming circuit and water source requirements, our experts provide pre-sale consulting at no charge.
Straightforward Purchasing: Free shipping on this unit. If the Grandfalls PRO doesn’t meet your installation or performance requirements after delivery, our return process is handled by our specialized team — not a generalist call center.