Best Michael Phelps Swim Spa Headrest Replacements for 2009-2014 Models
Answering the question most buyers ask—these headrest replacements fit Michael Phelps swim spas and related Master Spas lines from 2009 to 2014. They’re best for pool owners seeking an OEM-like fit, restored comfort, and easy installation. Ideal for those who want to bring back the original look and neck support after wear or water exposure. This guide highlights five compatible options, shows who each is best for, and explains why they’re recommended.
Summary table of selected products:
- Product: Genisai 2-Pack Hot Tub Headrest Replacement — Best for: Frequent replacers needing a budget-friendly 2-pack.
- Product: Sunluway Hot Tub Head Rest — Best for: OEM-fit, wide Master Spas compatibility, charcoal gray aesthetic.
- Product: Genisai 4-Pack Hot Tub Headrest Replacement — Best for: Families or shared spas needing multiple pillows.
- Product: Spatender 4 Pack Hot Tub Headrest Pillow — Best for: Durable replacements with denser foam, fits many Master Spas lines.
- Product: Yallmie Hot Tub Pillow 2-Pack — Best for: Precision replacement with detailed dimensions and enhanced comfort.
Genisai 2-Pack Hot Tub Headrest Replacement

Best for buyers who want a cost-effective solution and don’t need more than two pillows at once. The HTCP8-05-0094 / X540720 / MASX540720 part number is widely compatible with Master Spas and Michael Phelps swim spa lines from 2010–2014. These headrests cover multiple series, including Twilight, Clarity, Down East, and Legacy Whirlpool families. This makes them suitable for households with a variety of spa configurations or ongoing replacement cycles.
Who it’s best for: casual renters or owners with a two-headrest count in their spa configuration. Why selected: broad compatibility reduces the need to shop for separate replacements when multiple models are in use. Limitation: exact fit can vary slightly if your spa uses a non-standard trim or anchor system.
Sunluway Hot Tub Head Rest for Master Spas

This pillow is designed as a direct OEM replacement for HTCP8-05-0094 / X540720 / MASX540720. It emphasizes wide Master Spas compatibility across numerous lines, including Clarity Spas (2013–2014), Twilight Series (2009–2014), and Michael Phelps swim spas (2012–2014). The charcoal gray flat pillow look updates older, faded cushions while restoring comfort and support.
Who it’s best for: buyers seeking a direct fit with OEM-like performance and a neutral aesthetic. Why selected: emphasis on OEM replacements helps ensure snug installation without modification. Caution: appearance is flat in shape; some users may prefer pillows with more contour for neck support.
Genisai 4-Pack Hot Tub Headrest Replacement

Best for households with multiple spa seating areas or shared baths, this 4-pack matches the HTCP8-05-0094 / X540720 / MASX540720 part numbers and spans a wide range of Master Spas and Michael Phelps swim spa models from 2010–2014. It covers Swim Spas, Legacy Whirlpool, Down East, Twilight Series, and Contractor Series, making it a versatile choice for multi-room use.
Who it’s best for: families or facilities with several headrests to replace. Why selected: 4-pack reduces the need to reorder soon after installation. Caution: bulk packaging may include pillows with slightly varied density; verify fit with your model before full replacement.
Spatender 4 Pack Headrest Pillow for Master Spas

The Spatender 4-pack is designed to fit Master Spas 2009+ models and Michael Phelps swim spas, focusing on a denser foam for added durability. It emphasizes compatibility with a broad range of spa families, including Clarity, Twilight, Down East, and Legacy Whirlpool lines. The pillow’s shape is crafted to distribute neck pressure, contributing to longer, more comfortable spa sessions.
Who it’s best for: owners who value thicker foam and longer-lasting cushion performance. Why selected: highlights durability and broad compatibility. Caution: some users report tighter snap-fit requirements for certain models; confirm your anchor system compatibility before purchase.
Spatender Replacemen Generic Head Rest 2 Pack

Best for buyers who want a specific two-pack option that matches multiple model lines, including Michael Phelps swim spas and Master Spas 2009–2015. The 2-pack design covers classic headrest needs across Clarity Spas, Down East, and Twilight lines. It aims to restore original comfort with a familiar pillow profile.
Who it’s best for: owners replacing two pillows rather than a full set. Why selected: alignment with familiar part numbers and compatibility. Caution: some customers prefer higher-density foam for long sessions; this pack may have a slightly softer cushion depending on production batch.
Buying Guide
- What model range should I target? Look for replacements listed as compatible with Master Spas 2009+ models and Michael Phelps swim spas from 2012–2014, such as HTCP8-05-0094 / X540720 / MASX540720 references.
- How many pillows do I need? If your spa has multiple seating areas, a 4-pack may save time and ensure consistent appearance; a 2-pack is sufficient for spas with two headrests.
- What material matters? High-density foam and durable covers resist waterlogging and prolonged immersion. EVA or similarly dense materials help prevent hardening over time.
- Will the pillow fit my anchor system? Some models use different snap spacings. Verify the pillow’s dimensions and snap spacing (approx. 6.1 inches for some direct OEM replacements) before purchasing.
- What about color and aesthetics? Charcoal gray pillows align with many spa exteriors and help conceal wear; consider whether a neutral tone matches your spa interior.
- Durability versus cost: OEM-like replacements often balance precise fit with longevity. For high-use spas, investing in slightly denser foam can reduce replacement frequency.
Frequently Asked Questions
- Are these headrests compatible with all Michael Phelps spas? They cover many 2012–2014 Michael Phelps swim spas and related Master Spas lines, but always confirm model compatibility before purchase.
- Do replacements require tools for installation? Most headrests snap into existing anchors and do not require special tools, though confirm your spa’s specific installation method.
- Will the pillow color match my existing cushions? Many replacements are charcoal gray, offering a close match to common spa interiors; check product images for color confirmation.
- How long should a replacement headrest last? With high-density foam and proper care, replacements can last several years; avoid exposing foam to harsh chemicals for extended periods to prolong life.
- What if the pillow doesn’t fit my spa exactly? Some models have non-standard anchor spacing; consider a 4-pack option or a model explicitly listing your spa line to ensure a snug fit.
- Do these pillows improve neck comfort? Replacements with ergonomic curves and denser foam can better distribute cervical pressure and reduce neck strain during longer soaks.