Elkhart Plastics - RV Holding Tank - 58" x 28" x 8.5" Nominal - End Drain - H1107003

Finding the right RV holding tank with an end drain configuration can be challenging when you need a reliable replacement that fits your specific RV layout. The Elkhart Plastics RV Holding Tank (H1107003) delivers professional-grade performance with its 58" x 28" x 8.5" profile and end drain design, engineered specifically for waste management systems requiring this exact footprint and drain positioning.

Features & Specifications

• Precise Dimensions: 58" length x 28" width x 8.5" height with end drain configuration for exact OEM replacement fit
• Premium Roto-Molded Construction: Black LLDPE; the drawing specifies a 0.150-inch wall thickness
• Large Capacity: Capacity is not specified on the retained drawing
• End Drain Design: Strategically positioned end drain for compatibility with specific RV plumbing configurations
• Drawing Assembly: The drawing lists a female 3-inch ABS adapter (380),gear clamp (O56) and two OS-12 spin-patch vent tubes; OS-12 is explicitly not shown in the views
• Health & Safety Certified: Manufactured to meet quality and health safety standards with fewer impurities for secure waste storage
• Impact Resistant: Roto-molded process creates durable construction that withstands road vibration, temperature extremes, and physical impacts
• OEM Grade Quality: Elkhart Plastics reputation for manufacturing tanks trusted by RV manufacturers and professional technicians nationwide

Why Choose the Elkhart Plastics RV Holding Tank H1107003?

The retained manufacturer drawing identifies H1107003 with a end drain and a sloped lower profile. It specifies black LLDPE and 0.150-inch wall thickness. Match your existing part number, supports, connection locations and clearances; outer dimensions alone do not establish interchangeability.

Compare 58" Length RV Holding Tanks

Not sure which 58" holding tank is right for your RV? Compare the specifications of similar length tanks to find the perfect fit for your space and drain configuration:

Pro Tip: Always measure your existing tank compartment carefully before ordering, paying special attention to drain positioning. End drain vs. side drain placement is critical for proper installation and plumbing compatibility. If you're unsure about fitment, our AI Live Chat can help verify compatibility.

Technical Specifications

• Part Number: H1107003
• Dimensions: 58" L x 28" W x 8.5" H
• Estimated Capacity: Not specified on retained print
• Material: Black LLDPE;0.150-inch wall per drawing
• Construction: Seamless roto-molded
• Drain Position: End drain
• Fittings: Drawing lists adapter 380,clamp O56 and two OS-12 tubes
• Weight: 23 lb assembled weight stated on print;22 lb shot weight is listed separately
• Color: Black polyethylene
• Application: Black water, gray water, or holding tank replacement
• Manufacturer: Elkhart Plastics/Ameri-Kart

What's Included

• One (1) Elkhart Plastics RV Holding Tank - H1107003
• Assembly drawing lists a female 3-inch ABS adapter,gear clamp and two OS-12 tubes
• Elkhart Plastics quality certification and manufacturing standards compliance
• Note: Fittings, drain valves, vent caps, and mounting hardware sold separately - browse our fittings kits to complete your installation
• Warranty: Backed by Elkhart Plastics manufacturing quality standards

Compatible Models & Alternatives

Compare exact part identity and the complete drawing to your installation. Related configurations are linked below for comparison, not as verified interchangeable substitutes.

• Similar Capacity Alternative: MAKS 120073001 - 58" x 28" x 8.5" End Center Drain
• Fittings & Hardware: Browse our complete selection of RV tank fittings, drain valves, vent caps, and installation accessories
• Different Dimensions: Explore our full collection of Elkhart Plastics holding tanks in various sizes and configurations
• Installation Supplies: Tank mounting straps, sealants, and plumbing connectors available

Frequently Asked Questions

How do I install this RV holding tank?

Compare the complete original print to your existing tank and plumbing before installation. The assembly drawing lists adapter 380,clamp O56 and two OS-12 spin-patch vent tubes. OS-12 locations are not shown, so do not assume arbitrary drilling or connection locations from the rendered views. Use qualified RV plumbing installation procedures.

Is this compatible with my RV model?

A matching tank-compartment size does not establish fitment. Verify H1107003 part identity, the projecting end outlet, support arrangement and all plumbing clearances against the original print.

What does "end drain" mean on this tank?

The "end drain" refers to a drain outlet positioned at one end of the tank rather than on the side or bottom. This design is common in many RV configurations and ensures proper drainage when the tank is mounted in specific orientations.

What fittings do I need for installation?

You'll need drain fittings, vent fittings, inlet fittings, and potentially a tank monitor sensor depending on your RV's configuration. Browse our fittings kits or contact us via AI Live Chat with your specific requirements for personalized recommendations.

Can this be used for both black water and gray water?

Yes, this tank is suitable for black water (toilet waste), gray water (sink/shower drainage), or holding tank applications. The drawing specifies black LLDPE; suitability for your installation depends on the complete plumbing configuration.

What's the difference between this and similar sized tanks?

The key differences are in the exact dimensions and drain positioning. This H1107003 has an end drain at 58" x 28" x 8.5", while similar tanks may have slightly different dimensions or drain positions (end center, side, etc.). Always verify your exact compartment size and drain configuration before ordering.

Why Buy from Elkhart RV Parts?

As the only authorized online retailer for Elkhart Plastics RV tanks, we guarantee 100% authentic OEM grade parts - never aftermarket imitations. Every tank ships with verified quality certifications and meets the same exacting standards used by RV manufacturers. Our expert team understands RV plumbing systems and can help you select the right tank, fittings, and accessories for your specific installation. We offer fast shipping, secure packaging for large items, and comprehensive support from selection through installation.

Dimensioned Print and Gallery Views

The original H1107003 drawing, revision A dated August 15, 2023, gives parenthesized plan callouts of 57 1/2 x27 1/2 inches and an 8 1/2-inch side-view depth. The title block lists nominal dimensions of 58 x28 x8.5 inches. Both references are retained explicitly; allow for the projecting end adapter and compare the full print to your installation.

The print specifies black LLDPE, 0.150-inch wall thickness, 22 lb shot weight and 23 lb assembled weight. Shot weight is not finished or packed shipping weight. The parts list includes female 3-inch ABS adapter 380,gear clamp O56 and two OS-12 spin-patch vent tubes. A note says OS-12 is not shown; their positions were not invented in the model. No capacity is stated on this print.

The four views and rotatable model are print-based reconstructions, not measured manufacturing CAD. Undimensioned upper-band depth, body inset, sloped-floor transitions, corner rounding and adapter/clamp exterior details are illustrative. The original blueprint remains the fitment reference.