Description
Gecko AquaFlo.50 HP FMHP/FMCP/TMCP Impeller (91693501) is a precision-engineered closed-face impeller designed specifically for AquaFlo/Gecko FMHP, FMCP, and TMCP spa pump assemblies. With a 1/2 horsepower rating, this impeller is built to run reliably in FMHP/CP or TMCP wet ends and should be paired with a 1/2hp (or greater) thru-bolt motor. The shaft seal is sold separately to ensure a perfect, leak-free fit for your exact setup.
- Impeller Type: Closed Face
- Diameter OD: 3-7/16" (approximately 87.3 mm)
- Vane Width ID: 1/4" (6.35 mm)
- Eye Diameter OD: 1-3/4" (44.45 mm)
- Eye Length: 15/16" (0.9375")
- Impeller Thickness OD: 7/16" (0.4375")
- Seal Seat Depth: 1/4"
- Shaft Length: 1-3/4"
- Shaft Diameter OD: 5/8" (0.625")
- Seal Seat Diameter OD: 1-1/4" (1.25")
- Manufacturer: AquaFlo/Gecko
- Application: FMCP, FMHP, TMCP spa pumps
What makes this Gecko impeller stand out is its thoughtful design rooted in three decades of spa experience. Gecko Alliance focuses on how users interact with spa equipment, so every component—down to the impeller geometry—aims for smooth performance, predictable flow, and long-lasting reliability. This results in a pump that not only delivers efficient water movement but also reduces vibration and wear, helping your spa run quieter and more efficiently over time.
Why choose this impeller for your spa pump? It’s crafted for compatibility with the FMHP/FMCP/TMCP series, ensuring you can restore original flow characteristics and maintain proper spa filtration. The closed-face design supports stable prime and efficient suction, while the precise vane and eye dimensions optimize water displacement with minimal cavitation. While many replacements exist, this Gecko impeller is a dependable, budget-friendly option that aligns with Gecko’s reputation for durable, user-focused spa components.
Ideal use cases
- Replacing a worn or damaged impeller in AquaFlo/Gecko FMHP, FMCP, or TMCP spa pump assemblies
- refurbishing older spa systems to restore original flow and pressure
- Maintenance planning for spa technicians who stock reliable Gecko AquaFlo parts
- Upgrading pump reliability and consistency in residential or small commercial spa setups
Practical notes for installation and maintenance
- Ensure the motor matches 1/2 hp or greater and uses a thru-bolt mounting pattern for proper alignment.
- The shaft seal is sold separately—order a compatible seal kit to complete the installation.
- Before installation, inspect the seal seat and seating depth (1/4") to ensure an airtight seal and smooth operation.
- Keep the pump and impeller channels clear of debris to preserve performance and prevent cavitation.
- Refer to Gecko/AquaFlo manuals for torque specs and alignment guidelines to avoid damaging the impeller or motor shaft.
For installers and spa enthusiasts seeking a dependable, purpose-built replacement, Bath & Spa Parts Online offers a broad selection of Gecko Alliance products and a wealth of manuals and installation sheets. Our Product Specialists are available by phone, chat, or email during normal business hours to help confirm compatibility and answer any technical questions, ensuring you get the right part the first time.
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WHY USE GECKO PRODUCTS? |
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At Gecko, understanding the spa users environment and expectations is key in the process of designing and making the perfect control systems, intuitive keypads, powerful but efficient pumps and value-added accessories for spas. When a user touches a button, presses a key or clicks on a link, he already expects how his spa, the product of Gecko customers, should respond to his commands. He is validating, at each interaction, the quality of the experience he associates with his spa. Gecko Alliance has been providing that high level quality products and service to their customers for almost three decades. Their products are some of the most reliable products made in the industry today. Gecko Alliance products are a great affordable alternative to Balboa Water Group products. |
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