Spillways & Diffusers Spillways & Diffusers When a fall of water is desired and filtration is not needed. They diffuse incoming water flow to create the beginnings of streams and waterfalls.
Webb's Exclusive Offers: FREE Shipping and Discount Code View for details
Main Banner
Plastic Spillways & Diffusers
Location
Home / Product Types / Spillways and Weirs / Spillways & Diffusers

Spillways & Diffusers

AquascapePRO Waterfall Spillway

The Aquascape Waterfall Spillway is a cost-effective way to create the starting point on any waterfall or stream, providing a smooth consistent water flow. The spillway is a versatile tool that can be used in a wide variety of water feature applications. As the incoming water rushes in, the water is diffused by strategically positioned internal barriers, creating smooth flow of water. Able to handle flow rates up to 7,500 gallons per hour, the wide 22" spillway provides an ideal solution for Pondless disappearing waterfall systems where large and expensive biological filters are not necessary. The Aquascape Waterfall Spillway can also be installed as an additional waterfall or stream onto a new or existing pond. Its durable design allows boulders, gravel, soil or other creative landscape material to be set directly on top, making it easy to camouflage into the surrounding landscape. 

Features:

  • Creates a smooth and consistent water flow for waterfalls
  • Low profile and durable design
  • Handles the weight of stone boulders for concealment
  • Max flow rate of 7,500 GPH
  • Includes 2" PVC slip and 1.5" barbed fitting

AquascapePRO Waterfall Spillway

Item Spillway Width Dimensions Max Flow Fittings Included
AquascapePRO Waterfall Spillway (MPN 77000)
$149.99 $134.99 | 337 Points
FREE $20.00 Free Gift Certificate Code
22"
17.5"L x 24"W x 5"H
7,500 GPH
2" PVC slip, 1-1/2" barb hose
EasyPro Eco-Series Waterfall Diffusers

Faster to install and Tougher spillway than any other spillway on the market

  • Ideal for use at beginning of streams and in block walls, pools and formal fountains
  • Low profile design of only 3-1/2"
  • Extra strong vertical rib design creates a nearly indestructible diffuser
  • Dual 2" inlets

EasyPro Eco-Series Waterfall Diffusers

Item Description Size Flow (GPH)
Easy Pro Eco-Series 16" Waterfall Diffuser (MPN UWD16)
$107.99 $89.63 | 224 Points
FREE $10.00 Free Gift Certificate Code
16" Waterfall Diffuser
16" x 14" x 3-1/2"
1,000 - 4,000
Out of Stock
EasyPro Eco-Series 23" Waterfall Diffuser (MPN UWD23)
$144.99 $120.34 | 301 Points
FREE $15.00 Free Gift Certificate Code
23" Waterfall Diffuser
23" x 14" x 3-1/2"
1,500 - 6,000
EasyPro Eco-Series Dual 46" Waterfall Diffusers (MPN UWD46)
$289.99 $240.69 | 602 Points
FREE $15.00 Free Gift Certificate Code
Dual 46" Waterfall Diffusers
46" x 14" x 3-1/2"
3,000 - 12,000
Atlantic FastFalls - Waterfall Diffuser

Incredibly strong one-piece units feature an internal baffling system, support cones and re-enforced spillway. The innovative "inside the liner" design and rear liner attachment simplifies installation. Cover with rock, gravel, soil or mulch to blend with your surrounding landscape.

All models feature:
  • Spillway boxes diffuse incoming water flow to create starting points to streams and waterfalls
  • Designed to make plumbing the top of the waterfall as easy as possible
  • Innovative rear liner attachment simplifies installation and eliminates leakage due to settling
  • Crush-proof design with internal baffles stabilized by support cones carries the weight of stone
  • Reinforced spillway lip retains rock, gravel, mulch or soil
  • Includes installation kit, male thread adapter and one-piece liner flange

Atlantic FastFalls - Waterfall Diffuser

Item Weir Size Max Pump Flow Dimensions Connection
16"
3,000 GPH
16.5"W x 9.5"D x 7.25"H
1.5" FPT
19"
4,000 GPH
20.5"W x 17"D x 10.25"H
2" FIPT
26"
6,000 GPH
27.5"W x 17"D x 10.25"H
2" FPT
38"
9,000 GPH
39.5"W x 17"D x 10.25"H
3" FPT
Atlantic FastFalls

Easily add a waterfall or stream to a new or existing water feature. Because of their rugged design and HMWPE construction, Fastfalls also comes with Atlantic's exclusive lifetime warranty.

Each FastFalls includes bulkhead, liner attachment flange, splash reduction foam and top grate.

Atlantic FastFalls

Item Weir Size Pump Rate Dimensions Connection
14"
2,000 GPH
16" x 11" x 8"
1 1/2" FPT
25"
4,000 GPH
27" x 11" x 8"
2" FPT
Atlantic 36" Fastfalls (MPN SP3600)
$207.99 $138.95 | 350 Points
36"
6,000 GPH
38" x 13" x 9"
2" FPT
Atlantic 48" Fastfalls (MPN SP4800)
$356.99 $238.95 | 600 Points
48"
8,000 GPH
50" x 11" x 10"
(2) 2" FPT
Savio Waterfall Weir

Creates 16" Wide Waterfall

Dress up your waterfall return with this easy, eye-pleasing Waterfall Weir.

Enjoy hours of relaxation as your pond recreates the beauty of nature.

  • No glue liner connection - all compression seal securely holds liner in place without adhesives.
  • Easily connect 2" flexible or rigid PVC tubing to the rear inlet (not shown). Adapts to other types and sizes of tubing with fittings sold separately.
  • Bio-mechanical filtration.
  • Super strong injection molded housing.
  • Use multiple units for a wider waterfall.
  • Rated for pump flow rates of 900-3000 gph

Savio Waterfall Weir

Item Inlet
Savio Waterfall Weir 16" (MPN F050)
$130.00 $104.00 | 260 Points
2" slip
Out of Stock

Savio Waterfall Weir

Item
 
Calpump Preformed Spillways

Create a quick and easy waterfall effect with our Calpump Spillways. These Spillways are available in two different sizes, a 10", and 18". All of the Spillways include filter media to condition the water for a smooth waterfall effect. The 10" spillway has a 1" inlet with fitting and the 18" have both 1" and 1 1/2" fittings for easy installation.

    Features & Benefits:
  • No digging Required
  • Create a smooth or turbulent effect
  • Filter media included

Calpump Preformed Spillways

Item Inlet Max Flowrate Spillway Dimensions
1"
1000 GPH
10"
11" x 11.5" x 10.5"
1" and 1 1/2"
4000 GPH
18"
19" x 11" x 10.5"
Savio F060 FilterWeir 31 inch

Creating appealing waterfalls is easy with FilterWeirs. FilterWeirs provide bio-mechanical filtration and the tranquil sounds and visual splendor of a cascading waterfall. Simple installation, solid construction, professional results. Use multiple units to build cascades and larger waterfalls. F060 Includes a sturdy media grate for plants and stones. Savio has unleashed a giant· the massive new FilterWeir 31. This easily installable weir provides the tranquil sounds and visual splendor of a cascading waterfall on a large scale. This is the way for do-it-yourself, and pond pros alike, to create an impressive, dramatic display of falling water, with professional results. Plus, it's easy to retrofit to existing ponds, and pond free systems, with flow rates up to 10,000 gallons per hour. Includes 31 inch face plate spillway, and a sturdy media grate for stones or potted plants.

Savio F060 FilterWeir 31 inch

Item Inlet
Savio FilterWeir 31" (MPN F060)
$230.00 $184.00 | 441 Points
3" Slip
Out of Stock
Little Giant Waterfall Weir

The Little Giant Waterfall Weir is designed to provide the look and function of a natural waterfall. As with all Little Giant products, it has a sturdy design which gives you the option to create a natural disguise with rocks or other decorative elements. It is designed to be simple to install and easy to clean, while creating an excellent point of origin for a disappearing waterfall. Multiple units can be run using a single pump to create an impressive waterfall display.

Features:
  • Multiple plumbing ports for a more versatile installation
  • Built-in drip edge that directs water flow and helps to prevent back flow
  • Circular, ridged wall design which provides extra strength and helps keep unit anchored in the ground
  • Includes flexible pipe grommets for easier installation

Little Giant Waterfall Weir

Item Max Pump Rate Weir Width Connection Dimensions
6,000 GPH
7-3/4"
2" or 3"
12.3"W x 13.4"L x 9.8"H
Pondmaster Waterfall Box
  • Extra-Wide Spillway for Greater Water Aeration
  • Open Swirl Chamber for Even and Efficient Water Flow Through the Filter Media
  • Easily Buried In Ground To Hide Filter from Sight
  • Holds More Friendly Bacteria to Help Filtration
  • Made of High Impact ABS
  • Extra Long Weir Lip for Stacking Stones in Front of Waterfall
  • Pre-Bored Inlet Size of 2-½"
  • Packed Individually

Pondmaster Waterfall Box

Item Container Capacity Max Pump Flow Waterfall Width Dimensions (WxDxH")
1 Gal
950 GPH
8" Opening
9" x 12" x 8"
1.5 Gal
2000 GPH
11-¼" Opening
12" x 15" x 9"
1 Gal
950 GPH
8" Opening
9" x 12" x 8"
4 Gal
3000 GPH
16" Opening
16" x 18" x 13"
Pondmaster BioMatrix Filters & Falls
  • Wide Spillway for Greater Water Aeration
  • Easily Buried to Hide Filter from Sight
  • Designed to Accommodate Addition of Mechanical or Biological Filtering for Super-Clean Water

Pondmaster BioMatrix Filters & Falls

Item Container Capacity Max Pump Flow Waterfall Width Dimensions (WxDxH")
1 Gal
950 GPH
8" Opening
9" x 12" x 8"
1.5 Gal
2,000 GPH
11-¼" Opening
12" x 15" x 9"
OASE Waterfall Spillway

Waterfalls appeal to the senses they engage, wow and invigorate. They serve as more than visual impact waterfalls supplement the ponds aeration, boosting ecosystem health for plants and fish. The spillway design allows for discreet installation, blending seamlessly into your pondscape when covered with landscaping stone. Installation is straightforward - the waterfall spillway is ideally positioned at the pond's edge. It is lightweight for easy installation. Made of UV resistant high impact plastic.

OASE Waterfall Spillway

Item Inlet Size Spillway Size Dimensions
3/4", 1"
8"
12.5" x 10.4" x 6"
1.5"
16"
20.7" x 18.5" x 11.3"
Banner Adverts
Same Day Shipping
Deal of the day
Free Shipping 39 June 2017
PayPal Banner
Recent Articles

Train Your Koi To Hand Feed

01/15/2019 10:25:02 AM: The sounds of a cascading waterfall and birds singing. Not a cloud in the sky. The sun is shining and you're resting by the pond feeding your koi. What could be better than this? How about actually hand feeding them! Follow the few easy steps below and your koi will be eating from the palm of your hand in no time.

Laguna Pond Netting

01/10/2019 11:02:34 AM: Laguna Protective Pond Netting protects valuable koi and goldfish from predators, plus it keeps leaves and other debris out of the pond - protecting submerged circulating pumps from becoming clogged and reducing overall pond maintenance. The black netting material blends naturally in the water garden and comes complete with ground stakes to secure it in place.

The Taste Tester

01/03/2019 12:09:24 PM: Joe takes product research VERY seriously...

Waterfall Construction Top Tips

11/20/2018 01:33:26 PM: In the wide world of waterfalls, there are many approaches to construction. However, creating the most natural looking waterfall possible is always the bottom line. Below you'll find a list of tips that should help make the design and construction go a little smoother. Hopefully, saving you time and frustration.

Login Status
Webb's Water Gardens
Your Cart
Your Cart: Empty
Quick Store Search
Browse
Online Store Search
© 1981-2019 Webb's Water Gardens, all rights reserved worldwide.
Software: Kryptronic eCommerce, Copyright 1999-2019 Kryptronic, Inc. Exec Time: 0.208539 Seconds Memory Usage: 14.634621 Megabytes
Kryptronic