Certikin CM4UC/18 Premium 4-Tread Undercover Swimming Pool Ladder

As a retailer of pool and spa equipment, I’m excited to present this highly specialized Certikin 4-tread undercover ladder – a revolutionary two-part design engineered specifically for swimming pools equipped with automatic safety covers. This premium ladder represents the pinnacle of pool access innovation, combining marine-grade construction with ingenious engineering to solve the unique challenges posed by automatic pool cover systems.

Revolutionary Two-Part Undercover Design

The CM4UC/18 undercover ladder represents a breakthrough in pool access technology through its innovative two-part construction system. Unlike conventional single-piece ladders that can interfere with automatic pool covers, this design separates the handrails from the step section, allowing the cover to operate without obstruction while maintaining full ladder functionality.

The upper handrail section mounts securely to the pool deck using flange fixings, while the lower step section attaches directly to the pool wall. This ingenious configuration ensures that when the automatic cover is deployed, it can close completely without being interrupted by ladder components, maintaining both safety and convenience.

Automatic Pool Cover Compatibility

This ladder is specifically designed to address the challenges faced by pool owners with automatic safety covers. Traditional ladders create obstacles that prevent covers from closing properly, compromising both safety and functionality. The undercover design eliminates this problem by positioning the step section below the cover’s path of travel.

Key Compatibility Benefits

• Unobstructed cover operation – the cover can open and close without interference
• Maintains pool safety when covered – no protruding elements that could compromise cover integrity
• Preserves aesthetic appeal – the cover presents a clean, uninterrupted surface when closed
• Protects ladder components – the submerged position protects steps from weather exposure

Premium Marine-Grade Construction with Grabrails

Engineered from AISI 316 marine-grade stainless steel, this ladder delivers exceptional durability and corrosion resistance. The AISI 316 grade contains molybdenum (2-3%), forming protective chemical compounds that resist chloride-induced pitting corrosion, making it ideal for both traditional chlorinated pools and salt chlorinator systems.

The 43mm (1.7″) diameter tube construction provides superior structural strength, while the included grabrails offer additional support and stability. The grabrail system is particularly important in undercover installations where users may need extra assistance entering and exiting the pool due to the unique positioning of the ladder components.

Professional Safety Engineering

Enhanced Safety Features for Covered Pools

The two-part design incorporates additional safety considerations essential for pools with automatic covers:

• Double safety top tread – vital for this style of installation where the handrail section is separated from the steps
• Stainless steel anti-slip treads provide secure footing in the submerged environment
• Grabrail integration offers multiple grip points for safe entry and exit
• Optimal step positioning ensures safe access despite the unique installation configuration

Safety Standards Compliance

This undercover ladder fully complies with Domestic Pool Standard EN 16582-1:2015. For commercial installations requiring compliance with EN 13451-2:2015, the double safety top tread is already incorporated into the design, with additional double treads available for all positions if required.

Advanced Pinch Anchor Technology

The handrail section utilizes Certikin’s revolutionary 1.7″/43mm pinch anchor system for deck mounting, while specialized wall fixtures secure the step section. This dual-mounting approach ensures optimal stability and load distribution across both the pool deck and pool wall structure.

Installation Engineering

• Flange fixings provide secure deck mounting for handrails
• Pool wall mounting system for step section prevents interference with cover operation
• Professional alignment ensures proper spacing between handrails and steps
• Structural integrity maintained despite the separated design

Corrosion Resistance Excellence

Submerged Environment Performance

The undercover design places the step section in a permanently submerged environment, making superior corrosion resistance critical. The AISI 316 construction provides exceptional performance in this demanding application, where continuous water exposure and chemical contact create challenging conditions.

Marine-Grade Protection

The advanced stainless steel construction resists:

• Continuous submersion effects
• Chlorine and sanitizing compound exposure
• Salt water and electrolytic corrosion
• Chemical stratification in covered pools
• Biofilm and bacterial growth in low-circulation areas

Made-to-Order Precision Manufacturing

This sophisticated undercover ladder is manufactured to order, reflecting the precision engineering required for this specialized application. The bespoke manufacturing process ensures each component is manufactured to exact specifications, critical for the proper operation of both the ladder and automatic cover system.

Quality Assurance for Specialized Applications

Every undercover ladder undergoes rigorous testing to ensure:

• Precise dimensional accuracy for cover compatibility
• Structural integrity of the two-part design
• Corrosion resistance in submerged environments
• Component alignment and fit tolerances
• Safety compliance for specialized installation

Professional Installation Requirements

The two-part undercover design requires professional installation to ensure proper integration with the automatic pool cover system. The installation must be carefully coordinated with the cover manufacturer’s specifications to maintain both ladder safety and cover functionality.

Installation Considerations

• Cover manufacturer coordination essential for proper clearances
• Structural assessment required for dual mounting points
• Precise alignment critical for safe operation
• Professional expertise recommended for complex installation requirements

Ideal Applications

This specialized 4-tread undercover configuration is designed for:

• Pools with automatic safety covers requiring unobstructed operation
• High-end residential installations with premium safety systems
• Commercial facilities with automatic cover systems
• Medium depth pools where cover interference is a concern
• New construction where cover integration is planned from the design phase
• Retrofit applications where covers are added to existing pools

Long-Term Performance Benefits

The undercover design not only solves immediate compatibility issues but also provides long-term benefits including reduced maintenance requirements for both the ladder and cover system, extended component life through protected installation, and maintained safety standards despite the complex installation requirements.

Product Specifications

Specification	Details
Model	CM4UC/18
Style	Two-Part Undercover Design
Number of Treads	4
Material	AISI 316 Marine-Grade Stainless Steel
Tube Diameter	43mm (1.7″)
Anchor System	Flange fixings (handrails) + Wall mount (steps)
Tread Type	Stainless Steel Anti-Slip
Safety Feature	Double safety top tread included
Grabrails	Included with flange fittings
Safety Standard	EN 16582-1:2015 (Domestic)
Commercial Standard	EN 13451-2:2015 (enhanced with double treads)
Pool Compatibility	Automatic cover equipped pools
Manufacturing	Made to order – precision engineering
Installation Type	Professional dual-mount system
Finish	Bright polished stainless steel
Protective Features	Submerged step protection
Suitable For	Concrete and liner pools with covers

Why Choose This Undercover Ladder

When you invest in this Certikin undercover ladder, you’re choosing the only viable solution for pools with automatic safety covers that refuses to compromise on safety, functionality, or aesthetic appeal. The innovative two-part design, marine-grade construction, and precision manufacturing ensure this ladder will provide decades of reliable service while maintaining the full benefits of your automatic pool cover system.

This specialized ladder represents the perfect intersection of advanced engineering and practical problem-solving, making it an essential component for any pool equipped with an automatic safety cover system.