OEM & ODM Services For Your Protective Covers.
Stock Tank Insulated Hard Cover — Oval & Round, Made to Your Size
Most stock tank covers are available in only one fixed size. If your tank does not match that size, a loose soft cover may shift in the wind, leave air gaps, and allow heat and debris back into the tank. JK Covers solves this problem with rigid, foam-insulated hard covers for oval and round stock tanks, designed and produced to your exact tank dimensions.
Whether you are building a cold plunge, ice bath, livestock water tank, or outdoor water storage system, JK Covers provides a secure, durable cover designed to help maintain temperature stability, reduce evaporation, and keep the water cleaner.
1. Made to Your Tank — Any Size, Any Specification
Every cover is produced according to your exact tank dimensions. We support oval tanks in S, M, and L sizes and round tanks in S, M, L, and XL sizes, as well as customer-specified dimensions and shapes beyond the standard range. Send us your measurements, drawings, template, or product sample, and our team will develop the cover to your requirements.
2. Rigid Hard Shell with a 50 mm EPS Insulation Core
The rigid construction helps the cover maintain its shape and create a closer fit against the tank rim. A 50 mm high-density EPS foam core helps slow heat transfer from sunlight and ambient air, supporting a more stable and colder water temperature for cold plunge and ice bath applications. This may also help reduce the amount of ice required during regular use.
3. 600D Solution-Dyed Oxford Fabric for Outdoor Use
The outer shell uses 600D solution-dyed Oxford fabric. It is designed for outdoor applications and offers UV stability, colorfastness, water resistance, and reliable durability for repeated use in sun and rain. The solution-dyed construction helps the fabric retain its color over time.
4. Helps Reduce Evaporation, Water Loss, and Ice Consumption
By covering the tank opening, the hard cover helps reduce surface evaporation. This supports more stable water conditions, helps conserve water, and may lower ongoing ice consumption for cold plunge and ice bath setups.
5. Helps Keep Leaves, Insects, Dust, and Debris Out
The full-cover design helps block leaves, insects, dust, and other outdoor contaminants from entering the tank. Cleaner water can mean less frequent cleaning and easier daily maintenance for cold plunge, ice bath, livestock, and outdoor water storage applications.
6. Six-Point Hook-and-Buckle Attachment
The six-point hook-and-buckle system helps tighten the cover around the tank for a stable fit. It is designed to help keep the cover in place during wind, rain, and regular outdoor use while reducing gaps that can allow heat exchange.
7. Folding Access Panel
The folding access panel provides convenient access to the tank without requiring the entire cover to be removed. This is useful for daily cold plunge use, ice bath maintenance, and livestock water access.
8. Full OEM/ODM Customization
Build a stock tank cover line under your own brand. We can customize the size, logo, color, material options, packaging, and other product requirements. Logo application options include screen printing, embroidery, and woven or sewn-on patches.
Why Choose a Hard Insulated Cover Instead of a Soft Cover?
| Feature | JK Covers Hard Insulated Cover | Soft Cover |
|---|---|---|
| Temperature retention | 50 mm EPS core and a close-fitting rigid structure help slow heat transfer. | Loose fit and air gaps may allow more heat exchange. |
| Evaporation control | Helps reduce surface evaporation. | More limited coverage and fit. |
| Debris protection | Full rigid cover helps block leaves, insects, dust, and debris. | Coverage may be less complete. |
| Wind and wear resistance | Rigid construction with six-point attachment helps the cover stay in place. | May shift, sag, or lose its fit over time. |
| Size availability | Made to your exact dimensions, including custom sizes. | Often limited to fixed sizes. |
| Recommended applications | Cold plunge, ice bath, livestock water tanks, and temperature-sensitive outdoor water storage. | Light-duty debris coverage. |
Applications
- Cold plunge tubs and ice bath tanks
- Oval and round livestock water tanks
- Agricultural and outdoor water storage
- Other applications where water cleanliness and temperature stability matter
Size Range
JK Covers supports the following stock tank size ranges. Every cover is made to order according to the customer's measured tank dimensions. Custom sizes and shapes outside the chart are also available.
Measurement definitions: D = oval tank short axis; W = oval tank long axis; Φ = round tank diameter; H = tank rim height.
Oval Stock Tanks — H = 600 mm
| Size | Short Axis (D) | Long Axis (W) |
|---|---|---|
| S | 500–700 mm | 800–1,000 mm |
| M | 500–700 mm | 1,100–1,300 mm |
| L | 500–700 mm | 1,400–1,600 mm |
Round Stock Tanks — H = 600 mm
| Size | Tank Diameter (Φ) |
|---|---|
| S | 800–1,000 mm |
| M | 1,100–1,300 mm |
| L | 1,400–1,600 mm |
| XL | 1,700–1,900 mm |
How to Order
- Measure your tank's long axis or diameter, short axis for oval tanks, and rim height.
- Compare your measurements with the size chart to identify the closest size: S, M, L, or XL.
- If your tank is outside the chart or has a different rim height, send us the dimensions and photos of the tank. We will design a cover to your exact requirements.
Important: Please measure your tank before requesting a quotation. Pricing, lead time, and MOQ are confirmed for each order according to the exact dimensions, quantity, materials, and branding requirements.
OEM / ODM Customization
Build Your Own Stock Tank Cover Line
JK Covers helps brands, distributors, retailers, and project buyers develop stock tank hard covers to their own market requirements. From product dimensions and materials to branding and packaging, we provide an integrated OEM/ODM solution for private-label stock tank cover programs.
Customization Options
- Custom sizes: Standard sizes or customer-specified dimensions and shapes based on tank measurements, drawings, templates, or samples.
- Custom logo: Screen printing, embroidery, woven labels, and sewn-on patches are available.
- Custom colors and materials: Match your brand palette and select material options according to your performance and market requirements.
- Custom packaging and branding: Retail-ready packaging with your brand identity applied to the product and packaging.
- Product development from your file: Send us a sample, template, technical drawing, or reference file, and our team will develop the product to your specification.
Our OEM/ODM Process
| Step | Details |
|---|---|
| 1. Project Brief | Share your tank dimensions, target market, quantity requirements, material preferences, and branding specifications. |
| 2. Sample Development | A prototype is developed for your review and approval. Sample lead time is 7–14 working days. |
| 3. Mass Production | Production starts after sample approval. Standard mass production lead time is 25–35 days. |
| 4. Packaging and Delivery | Products are packed according to your requirements and shipped to your warehouse, fulfillment center, or designated dropshipping hub. |
MOQ: 50 pieces per size per shape.
Pricing: Confirmed per order based on exact specifications, order quantity, materials, and branding requirements.
Lead time: Samples in 7–14 working days; mass production in 25–35 days after sample approval.
Ready to develop your own stock tank cover line? Send us your target tank dimensions and branding requirements. We will provide a sample plan and quotation based on your project specifications.
Why Partner with JK Covers?
JK Covers is a custom protective-cover manufacturer with more than 15 years of experience in design, development, and production. Founded in 2009, we have developed protective-cover solutions for automotive, outdoor, water-protection, and other applications. Our experience in custom product development supports the production of insulated stock tank covers for cold plunge, ice bath, livestock, and outdoor water-storage markets.
- 15+ years of experience: Design, development, and manufacturing experience since 2009.
- 2,500+ square meter factory: Production facilities supporting custom development and mass manufacturing.
- Experienced production team: More than 30 experienced production staff supporting consistent execution.
- Extensive development library: More than 500 cover templates and more than 300 seat-cover templates developed over years of industry experience.
- International OEM experience: Long-term OEM cooperation with European and American automotive and outdoor brands, including Ferrari, Lamborghini, Coverking, UKCC, and other international brands.
- Advanced production equipment: Automated cutting and fabric-processing equipment helps improve production accuracy and efficiency.
- ODM and dropshipping capabilities: Global ODM and dropshipping services available since 2015.
- One-stop project support: Product design, sampling, mass production, packaging, and logistics coordination from one supplier.
We do not simply supply a cover. We help build the product, branding, and supply chain behind your business.
FAQ
Q1. What sizes of stock tank hard covers do you make?
We make insulated hard covers for oval tanks in S, M, and L sizes, and for round tanks in S, M, L, and XL sizes. The standard chart is based on a 600 mm tank rim height and covers dimensions from approximately 500 mm to 1,900 mm, depending on the tank shape and size. Every cover is made to your measured tank dimensions, so custom sizes outside the chart can also be accommodated.
Q2. Can you make a custom-size cover for my tank?
Yes. Custom sizing is a standard part of our service. Please send the tank's long axis or diameter, short axis for oval tanks, rim height, and photos if available. Our team will review the information and develop a rigid insulated hard cover to your specifications.
Q3. Can a hard insulated cover help keep cold plunge water colder?
Yes. The rigid structure helps create a closer fit, while the 50 mm EPS foam core helps slow heat transfer from sunlight and ambient air. This supports a more stable, colder water temperature and may reduce the amount of ice required during regular cold plunge or ice bath use.
Q4. Is a hard cover better than a soft stock tank cover?
If your priorities are insulation, evaporation control, debris protection, and a stable fit, a rigid insulated hard cover offers clear functional advantages over a soft cover. Soft covers may be lighter and less expensive, but they can shift, sag, leave air gaps, and may be available only in fixed sizes.
Q5. Will the cover stay in place in windy conditions?
The six-point hook-and-buckle attachment system is designed to tighten the cover around the tank and help keep it in place during typical outdoor conditions and daily use. Actual performance depends on the tank design, installation, wind conditions, and the accuracy of the measurements provided.
Q6. What materials are used for the cover?
The cover uses a 50 mm high-density EPS foam insulation core, a rigid supporting structure, and a 600D solution-dyed Oxford fabric outer shell. The outer fabric is selected for UV stability, colorfastness, water resistance, and outdoor durability.
Q7. What is the minimum order quantity?
The MOQ is 50 pieces per size per shape. Because each order is produced according to the exact product specifications, the final quotation is confirmed based on dimensions, quantity, materials, logo requirements, packaging, and other customization details.
Q8. What is the lead time?
Sample development usually takes 7–14 working days. Mass production usually takes 25–35 days after sample approval. The final schedule is confirmed for each order according to product specifications, order quantity, and production requirements.
Q9. Can you develop a product from my drawing, template, or sample?
Yes. You can send us a product drawing, tank template, physical sample, measurements, or reference file. Our ODM team will review the information, recommend suitable materials and construction details, and develop a sample for your approval.
Q10. Do you supply the stock tank as well?
No. JK Covers supplies the insulated hard cover only. The stock tank itself is not included.
Q11. Can you provide private-label packaging and branding?
Yes. We support private-label programs with custom logos, colors, labels, packaging, and other branding requirements. Logo options include screen printing, embroidery, and woven or sewn-on patches.
Q12. How do I request a quotation?
Send us your tank shape, long axis or diameter, short axis for oval tanks, rim height, estimated order quantity, target market, and branding requirements. Photos, drawings, and samples are welcome. Our team will review your requirements and reply with a quotation and sample plan.
Contact Person: Johnson
Tel: 86-13386615919
Mail: info@jkcorp.cn
Add: No 88, Lane 225, Kaiyuan Rd, Hongtang, Jiangbei, Ningbo