Celtic Hot Tubs · Summit Line
Celtic Luna 118S
Celtic’s only round spa—designed to foster connection through symmetry and simplicity.
- 6Seats
- 18Jets
- 278 galWater volume
- 79" x 79" x 34"L × W × H
Plug & Play (110V) Available to order
- 16 Hydrotherapy Jets + 2 Turbo Boost Jets (18 Total).
- 2 HP – 2 Speed Pump for optimal performance.
- Silver Marble Acrylic Shell paired with an Obsidian Cabinet.
- Features Transparent LED Waterfall and Celtic Clean Water System.
About the Luna 118S
The Luna 118S offers a distinctive presence within the Summit Collection as Celtic’s only round spa—designed to foster connection through symmetry and simplicity. Its circular layout creates an open, conversational environment where every seat feels equally considered.
Specifications
| Seating | 6 Seats |
|---|---|
| Dimensions | 79" x 79" x 34" |
| Water volume | 278 gal / 1,052 L |
| Total jets | 18 |
| Dry weight | 661 lbs / 300 kg |
| Filled weight | 2,980 lbs / 1,352 kg |
| Electrical | 120V Conv. to 240V |
| Power type | Plug & Play (110V) |
| Seating style | Open seating |
| Controls | 7-Button Color Screen |
| Heater | US: 1kW (Convertible to 4kW) / UK/EU: 2kW |
| Pump | 2 HP – 2 Speed |
| Jets | 16 Hydrotherapy Jets + 2 Turbo Boost Jets |
| Whirlpool Therapy | Yes |
| Filtration | Micro Screen Cartridge |
| Water Feature | Transparent LED Waterfall |
| Interior Shell | Acrylic – Silver Marble (standard), Alabaster Wave, Sahara, Pearl, Espresso, Ocean Wave, Pewter |
| Celtic Clean Water | Yes |
| Cover | Celtic Shield Cover |
| Cabinet | Black or Coastal Grey |
Specifications are provided by the manufacturer and may change without notice. Please confirm details with our store before ordering.
Part of: Summit Line
Luna 118S finishes
Choose your shell & cabinet
Acrylic shell
Summit line acrylic interiors. Silver Marble is the standard shell; additional colours are shown for the Luna 118S models.
Silver MarbleStandard
Alabaster Wave
Sahara
Pearl
Espresso
Ocean Wave
PewterCabinet
Low-maintenance synthetic cabinets.
Black
Coastal GrayHover or tap a finish to read more. Standard finishes are included in the base price, Upgrade finishes cost extra. Availability can change – colours on screen may differ, see samples in store.
Pricing & availability
Get a quote for the Celtic Luna 118S
Tell us a little about your backyard and timing. The store closest to you will reply with current pricing, available colours, delivery options and what you need for the base and electrical.
- No-obligation quote
- Help with base, access and electrical planning
- Financing options available
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Built into every Celtic
The Celtic advantage
Triskelion Hydrotherapy System
Inspired by the Triskelion’s motion, our Turbo Boost Whirlpool System represents mind, body, and spirit—the harmony we aim to awaken in every Celtic Hot Tub experience.
- Three Modes of Motion: Delivers a balanced, immersive soaking experience.
- Turbo Boost Whirlpool: Dynamic water flow for ultimate relaxation.
- Targeted Jet Precision: Specifically designed to hit key muscle groups and soothe tension.
Celtic Clean Water Management System
Relaxation is easy when your water takes care of itself. Our management system works seamlessly to keep your spa pure and ready for use.
Automated Filtration
Continuous and efficient filtration cycles ensure the water remains crystal clear with minimal effort.
Ozone Sanitization
Naturally neutralizes contaminants, keeping your spa water safe and reducing the need for heavy chemicals.
Energy Efficient
Designed to maintain perfect water quality without causing a spike in your energy bills.
Safety and Efficiency
Inspired by the resilience of the Celts, every Celtic Hot Tub is engineered to endure. From durable construction to heat retention, we prioritize efficiency.
- Efficient pump operation: High performance combined with low energy draw.
- Heat Retention: Insulation systems specifically engineered to trap and retain heat.
- Durable Frame: 15-ply, cross-laminated, and reinforced with 2" lumber and high-density foam.
- Reduced Consumption: Experience reduced overall energy use year-round.
Celtic Glow & Protection
Elevate your nighttime experience. From the beautiful glowing atmosphere to the rugged protection of our covers, we've thought of everything.
Ensures Safe Nighttime Use
Navigate your hot tub safely and comfortably after dark.
Color-Driven Atmosphere
Set the mood with beautiful LED illumination.
Celtic Shield Cover
Lock in the heat and protect your tub with our durable, energy-saving cover.
Visit us
Where to see Celtic hot tubs
Stop by for free water testing, pool and spa supplies, or to see hot tubs in person. Call the store closest to you.
Gardendale
~9 mi from downtown Birmingham
Store hours
1054 Main St
Gardendale, AL 35071
Gardendale, AL 35071
Store hours
- Mon – Fri
- 9am – 5pm
- Sat
- 9am – 3pm
- Sun
- Closed
Pell City
~31 mi from downtown Birmingham
Store hours
1507 Martin St S #3
Pell City, AL 35128
Pell City, AL 35128
Store hours
- Mon
- Closed
- Tue – Thu
- 9am – 5pm
- Fri
- 9am – 6pm
- Sat
- 9am – 2pm
- Sun
- Closed