Open purchase for 365 days
Shipped the same day if purchased before 13.00
The range of covers for spa baths is large and in the picture the spalock looks quite similar. However, do not order a cover before you know how the cover is constructed on the inside. Make sure your new cover has:
✔ Strong insulation. At least 10 cm at the outer edge and 13 cm in the centre. ✔ Aluminium plastic, "Mylar" which is heat welded around the insulation block. ✔ Centreeasthonouring - 2 pcs galvanised U-beams of steels.
If your new spalock has the above components - You get economy and longevity!
Choose the shape that best matches your spa. You enter the dimensions in the next step.
Watch our instructional video for tips on how to find the right spalock.
A good spalock should withstand wind, rain and cold for many years. A heavy blanket of snow should not be able to deform the cover, while rainwater should run off automatically.
NOTE! Always measure on the bath and not on your old lid. You will receive information on how to measure after choosing the type of spalock.
A spa cover can always be a little bigger than the spa. An extra couple of centimetres just makes it easier to place on the spa.
The lid of a spa can therefore always have a smaller radius than the spa.
The skirt also hangs down 120 mm so any overhang is rarely visible.
Product sheet and specification.
Construction details |
| Thickness of insulation block highest part The thickness (cut) and high density provide good insulating properties. 5 inches (about 127 mm) is a good value, which still keeps the weight of the lid manageable. |
| Thickness of insulation block lowest part Should be slightly lower than the highest point to allow for water run-off. 4 inches (approx. 102 mm). |
| Density of insulation blocks The higher the density the better. 25 kg / m³ is a good value. |
| Reinforcement of the centre section Steel superior to aluminium in strength and torsional rigidity. 2 x galvanised steel U-beam. |
| Placed by reinforcement Avoid recessed reinforcements that can easily damage the vapour barrier. Embedded in the insulation block. |
| Type of vapour barrier Plastic film coated with aluminium. Superior moisture and chemical barrier. Vacuum sealed, and hot welded. |
| Insulation in the centre joint Often there are only 2 small cushions at the outer edge of the centre joint of a spalock, which means unnecessary heat losses. |
| Case material The case for the lids is made of Premium Marine Vinyl. |
| Swedish Guarantee 2 years Guarantee according to specification |
| Open purchase 30 days |
| Shipping cost Free home delivery with DHL |
| Delivery 1 - 3 days |
Constructions consists of insulating blocks with a density of 25 kg per cubic metre and is reinforced by a galvanised steel U-beam (steel is superior to aluminium in strength and torsional rigidity) embedded in the insulating block so that it cannot damage the moisture barrier. The moisture barrier is in turn vacuum-sealed, hot-welded and made of aluminium-coated plastic film.
The function of the vapour barrier and importance of a spalock is worth commenting on further. One of the most common problems with spalock is that the vapour barrier fails and the cover takes in water and soon weighs 150 kg. The vapour barrier is therefore extremely important. We therefore decided to offer the most reliable vapour barrier on the market and we are convinced that we have now achieved this.
The moisture barrier is made of Mylar, which is a material made of specially treated polyester and aluminium foil. The cost of this material alone represents more than 15% of the total cost of the cover, but it's worth it! Ask our 1000s of satisfied customers over the years!
Marine vinyl which wraps the entire structure is of the highest quality and is anti-UV and anti-mildew treated at the factory. Finally, for maximum durability, the joint of the vinyl is insulated along the entire length of the spalock with 2 small and one long pad to create durability and minimise heat loss.
The quality of the stitching naturally affects the lifespan of the cover. Our spalock is constructed with a double-twisted polyester thread that is basically "tireless". When choosing cheaper designs and materials, there is a risk that handles and stitching will give way over time. Concerns about similar mishaps are unwarranted when purchasing our Sannra™ spalock.
Our YKK manufactured zips on the Sannra™ spa lid are designed for heavy duty products. These heavy-duty zips are resistant to corrosion, rust and resist contact with chemicals from the spa.
The bottom fabric is an additional protective layer on the underside of a spalock. The primary purpose of the fabric is to protect both the insulation block and the vapour barrier against harmful chemicals and, not least, cracks. The construction should of course also last a long time so that the spalock does not need to be replaced within just a few years. With these criteria in mind, we have chosen to manufacture our Sannra lids with a premium solution in the form of a multi-laminated vinyl base, which we are extremely satisfied with. It takes a relatively large external impact on the lid for an unwanted tear to appear on the spalocket. Original lids and cheaper aftermarket lids rarely offer this type of construction, but usually consist of a marine vinyl that over time deteriorates significantly in performance when in contact with the spa water.
The spalock has a slope that allows water to drain automatically. A smaller slope from side to side contributes to this effective drainage function. Snow and ice are best removed manually. However, don't panic if some snow remains on the lid. The spalock is robustly constructed. See picture; "a picture says more than 1000 words"?
Of course, we do not recommend that a spa cover be subjected to unnecessary stress and that you walk on it unnecessarily, or place heavy objects on top of it. Quite the contrary. But with the picture above, we still want to highlight the fact that there is a difference in construction and quality between a spa cover from Sannra and Kuben.se. A good spa cover should perform well for a long time.
We mainly stock lids in the colours grey, black, brown and light grey. When ordering made-to-measure, you can of course choose any colour. The delivery time for customised lids is approx. 3 months under normal circumstances.
The thickness of the insulation boards should be at least 12-13 cm in the centre. Lids for hot tubs used from Gävle upwards can be 15 cm thick in the centre sections.
If you are careful with the handling of the spa cover and apply UV protection, the cover should last at least 5 years if left uncovered.
Vinyl protection - 303 Aerospace Protectant is out-standing.
A spalock can always be a little greater and have smaller radius than your hot tub but still fit very well. If the cover is slightly larger, it may be easier to put on. The skirt goes down 12 cm so minor differences are hardly visible. Always measure the bath, not the lid.
Click here for a PDF on how to measure your new spalock.
