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Sea Side Aquatics Entry 25 Combi Unit Entry-25

SKU: Entry 25
$4,199.99 $4,619.99
You Save: $420.00 10%

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Sea Side Aquatics™ Entry 25 Combi RDF Filter – Model Entry‑25


Compact All-in-One Rotary Drum and Biological Filtration System for Ponds up to 10,000 Gallons

The Sea Side Aquatics Entry 25 Combi RDF Filter is a space-saving filtration solution that integrates mechanical and biological filtration in one easy-to-install unit. Designed for gravity-fed, pump-fed, or airlift systems, this filter uses a high-efficiency rotary drum to remove fine particles and a fluidized bio chamber with Helix media to promote natural biological breakdown. Ideal for koi ponds and aquaculture systems, it offers automated cleaning and long-lasting performance with minimal maintenance.

Key Features:

  • Handles flow rates up to 6,600 GPH

  • Suitable for ponds up to approximately 10,000 gallons

  • 75 or 120 micron stainless steel rotary drum for precision solids removal

  • Automated rinse system with high-torque 40 Nm drum motor

  • Integrated 90-liter bio chamber with fluidized Helix media

  • Aerated bio section with 34 cm air diffuser for enhanced oxygenation

  • Low installation height of approximately 16 cm above water level

  • Durable polypropylene housing with stainless steel internal components

  • Plug-and-play control box with manual and automated rinse settings

  • Includes 3 x 110 mm inlets, 2 x 110 mm outlets, and 1 x 110 mm waste outlet

  • Modular and removable components for easy servicing

Benefits:

  • Combines mechanical and biological filtration in one compact unit

  • Automatically removes fine solids to keep water clear and clean

  • Promotes beneficial bacteria growth for ammonia and nitrite reduction

  • Reduces manual maintenance with automated cleaning cycles

  • Supports multiple plumbing configurations for versatile installation

  • Built from rugged materials for long-term outdoor performance

Ideal Applications:

  • Medium-sized koi ponds, garden ponds, and ornamental water features

  • Aquaculture systems with moderate fish loads

  • Pond owners seeking low-maintenance, all-in-one filtration

  • Installations where space is limited and compact design is preferred

Shipping Shipping times vary by brand; some orders ship the same day, others take 1-2 days to process.
Delivery Estimated delivery on We pride ourselves on fast shipping and excellent customer service.

We take immense pride in offering some of the finest water feature products in the world, backed by our 30-day money-back guarantee. If you're not completely satisfied, we’ll go above and beyond to make it right.

Premium Quality – Our products are among the best in the industry.

Risk-Free Guarantee – Enjoy a 30-day money-back policy for peace of mind.

24/7 Customer Support – Our friendly team is always ready to assist you.

📧 Email: support@eternalfountains.com

📞 Call/Text: +1 (307) 317-8947

Description

Sea Side Aquatics™ Entry 25 Combi RDF Filter – Model Entry‑25


Compact All-in-One Rotary Drum and Biological Filtration System for Ponds up to 10,000 Gallons

The Sea Side Aquatics Entry 25 Combi RDF Filter is a space-saving filtration solution that integrates mechanical and biological filtration in one easy-to-install unit. Designed for gravity-fed, pump-fed, or airlift systems, this filter uses a high-efficiency rotary drum to remove fine particles and a fluidized bio chamber with Helix media to promote natural biological breakdown. Ideal for koi ponds and aquaculture systems, it offers automated cleaning and long-lasting performance with minimal maintenance.

Key Features:

  • Handles flow rates up to 6,600 GPH

  • Suitable for ponds up to approximately 10,000 gallons

  • 75 or 120 micron stainless steel rotary drum for precision solids removal

  • Automated rinse system with high-torque 40 Nm drum motor

  • Integrated 90-liter bio chamber with fluidized Helix media

  • Aerated bio section with 34 cm air diffuser for enhanced oxygenation

  • Low installation height of approximately 16 cm above water level

  • Durable polypropylene housing with stainless steel internal components

  • Plug-and-play control box with manual and automated rinse settings

  • Includes 3 x 110 mm inlets, 2 x 110 mm outlets, and 1 x 110 mm waste outlet

  • Modular and removable components for easy servicing

Benefits:

  • Combines mechanical and biological filtration in one compact unit

  • Automatically removes fine solids to keep water clear and clean

  • Promotes beneficial bacteria growth for ammonia and nitrite reduction

  • Reduces manual maintenance with automated cleaning cycles

  • Supports multiple plumbing configurations for versatile installation

  • Built from rugged materials for long-term outdoor performance

Ideal Applications:

  • Medium-sized koi ponds, garden ponds, and ornamental water features

  • Aquaculture systems with moderate fish loads

  • Pond owners seeking low-maintenance, all-in-one filtration

  • Installations where space is limited and compact design is preferred

Shipping

Shipping Shipping times vary by brand; some orders ship the same day, others take 1-2 days to process.
Delivery Estimated delivery on We pride ourselves on fast shipping and excellent customer service.

Our Guarantee

We take immense pride in offering some of the finest water feature products in the world, backed by our 30-day money-back guarantee. If you're not completely satisfied, we’ll go above and beyond to make it right.

Premium Quality – Our products are among the best in the industry.

Risk-Free Guarantee – Enjoy a 30-day money-back policy for peace of mind.

24/7 Customer Support – Our friendly team is always ready to assist you.

📧 Email: support@eternalfountains.com

📞 Call/Text: +1 (307) 317-8947

Sea Side Aquatics Entry 25 Combi Unit Entry-25

Sea Side Aquatics Entry 25 Combi Unit Entry-25

$4,199.99 $4,619.99
You Save: $420.00 10%

Why Choose Eternal Fountains?

Why Choose Eternal Fountains?

We handpick only the most reliable and beautifully crafted fountains from trusted U.S. brands

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FREQUENTLY ASKED QUESTIONS (FAQ)

How long will it take for my order to be shipped and delivered?

Shipping time depends on the brand. Some orders may ship the same business day, while others require 1–2 days for processing. Occasionally, there may be unforeseen delays. Most products are delivered within 2–5 days, and any longer shipping times will be clearly noted on the product page. We take pride in offering the fastest processing and shipping in the industry, backed by premium customer support.

What payment methods do you accept?

Visa Mastercard American Express Discover JCB Diners Club UnionPay Elo

We accept all major credit and debit cards — Visa, Mastercard, American Express, Discover, JCB, Diners Club, UnionPay, and Elo.
You can also pay over time with Affirm — choose 3, 6, or 12 monthly payments with no hidden fees.

What is your return policy?

We offer a 30-Day Money Back Guarantee on all items. You can review the full details in our Return Policy at the bottom of our website.

What is your cancellation policy?

Orders can be canceled within 48 hours for a full refund. If canceled after 48 hours, a 4% payment processing fee will apply. If the order has already shipped, our Return Policy will apply instead.

What if my product arrives damaged?

Upon delivery, inspect the packaging for damage. If visible, make a note when signing. If the box cannot be opened at delivery, write "suspect damage" on the receipt. If your item is damaged, please email photos to orders@eternalfountains.com. We’ll quickly arrange a replacement or compensation.

How do I place an order?

Click "Add To Cart" on the product page and proceed to checkout. You can also place orders by phone at +1 (307) 317-8947.

How do I know when my order will ship?

You’ll receive an order confirmation via email, followed by a shipping confirmation and tracking number. If an item is out of stock, we’ll notify you within one business day via email or phone.

Will I receive an order confirmation via email?

Yes — a confirmation email is sent to the email address you provide. Please double-check it for accuracy. We recommend saving this confirmation for your records.

Do you charge sales tax?

We are based in Wyoming and only charge sales tax for orders shipped to Georgia, Wyoming, Florida, Minnesota, and Illinois — helping most customers save compared to local retailers.

Can I change my order?

Yes, you can modify your order at no cost before it ships. Email us at orders@eternalfountains.com or call +1 (307) 317-8947. Price changes, if applicable, will be reflected via your payment method or a new invoice.
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