Menu
Search
All Products
    Menu Close
    Search store Close
    Shopping cart Close

    You have no items in your shopping cart.

    Previous productSun-Mar™ | Replacement Fan - GTG Fan 24 Volts DC /...
    Next productWCTNZ® | Vertical Vent Rain Cowl 50

    WCTNZ® | Vertical Vent Rain Cowl 100

    Be the first to review this product
    Brand: WCTNZ® | Waterless Composting Toilets NZ
    SKU: ACC-VV-RC-100dia
    The Vertical Vent Rain Cowl 100 allows a ventilation system's exhaust to exit upwards at velocity, escaping the downward air currents around a building.
    Availability: In stock
    $278.26 excl GST
    excluding shipping
    Estimated delivery time: Approx. 4–5 working days (NZ-wide)
    i h
    Products
    WCTNZ® ventilation accessory

    WCTNZ® Vertical Vent Rain Cowl 100

    A durable 100mm vertical rain cowl designed for composting toilet and passive ventilation systems.

    The cowl supports upward exhaust discharge while helping protect the open end of the vent from rain and debris.

    Pipe fit
    100mm DWV
    Direct PVC connection
    Vent direction
    Vertical
    Upward exhaust discharge
    Application
    Vent termination
    Composting toilet ventilation
    Function

    Upward discharge above the building

    The WCTNZ® Vertical Vent Rain Cowl 100 allows exhaust air to leave the ventilation system vertically and at velocity.

    This helps the exhaust move above downward air currents that can occur around a building while the cowl provides practical weather protection at the vent outlet.

    Features

    Durable protection for 100mm vent systems

    • Fits 100mm DWV PVC vent pipe.
    • Supports vertical exhaust discharge.
    • Helps reduce rain and debris entry.
    • Durable and weather-resistant construction.
    • Suitable for composting toilet ventilation systems.
    • Straightforward installation onto a compatible vent pipe.
    Final vent location, height and pipe routing must suit the composting toilet system, building layout and local wind conditions.

    WCTNZ® ventilation guidance: Correct vent sizing and termination are important to odour control and system airflow. Follow the applicable product manual and contact WCTNZ® where the installation uses a non-standard vent route.

    This content has been reviewed and approved by Dylan Timney , Managing Director of WCTNZ®.

    Copyright © 2026 Waterless Composting Toilets NZ Limited (WCTNZ®). All short and long product descriptions and content are the property of WCTNZ®. All rights reserved.

    Last reviewed: July 16, 2026

    Customers who bought this item also bought
    Fan Mesh for 100mm Ecoflo Fan Housing

    Fan Mesh (fits 100mm Diameter Fan Housing)

    FA-SA-FIH-MESH-GUARD
    Removable fan mesh installed above the fan in the 100mm housing to block debris and insects.
    $26.09 excl GST
    Signature Composting Systems
    CompoCloset™ Cuddy Lite Front

    CompoCloset™ | Cuddy Lite

    CC-CL
    Cuddy Lite is a space-saving urine-diverting composting toilet using compostable bags for easy, hygienic management—ideal for RVs, campervans, and camping.
    $1,695.65 excl GST
    CompoCloset™ Cuddy

    CompoCloset™ | Cuddy

    CC-C
    The Cuddy is a compact urine-diverting composting toilet with a reliable agitator and long-term containment—ideal for RVs, campervans, camping, off-grid.
    $2,043.48 excl GST
    Nature Loo Alectura Comfort package

    Nature Loo™ | Alectura Comfort

    NL-ALT-COMFORT
    The Nature Loo™ Alectura Comfort system is a specialized design for tiny homes with a low underfloor clearance requirement of 500 mm, making it very suitable for transportable housing and most retro installations. This composting toilet model is suitable for a couple looking to install a composting toilet in their tiny house.
    $3,081.74 excl GST
    Nature Loo Alectura Premium package

    Nature Loo™ | Alectura Premium

    NL-ALT-PREMIUM
    The Nature Loo™ Alectura Premium system is a specialized design for tiny homes with a low underfloor clearance requirement of 500 mm, making it very suitable for transportable housing and most retro installations. This composting toilet model is suitable for a couple looking to install a composting toilet in their tiny house.
    $4,151.34 excl GST
    Signature Greywater Systems
    EZGREY 50mm

    GreyFlow™ | EZGREY™ (STANDARD) (Manual 100w) - 50mm Inlet

    GW EZGREY-M1
    Compact 100W pumped GreyFlow™ greywater diversion unit for low-flow shower, basin and laundry greywater, suited to small households and low-head land-application areas.
    $1,280.57 excl GST
    M-43E

    Passway™ | M-43E

    GW-GT-M43E
    Mid-sized 64L Passway™ grease trap / grease interceptor for medium-use kitchens, cafés, staff facilities and food-preparation areas needing practical FOG separation, drain protection and routine service access.
    $927.65 excl GST
    M-43F

    Passway™ | M-43F

    GW-GT-M43F
    Compact 40L Passway™ grease trap / grease interceptor for small kitchens, residential use, staff kitchens and light food-preparation areas where fats, oils and grease need to be captured before entering drains, septic, greywater or wastewater systems.
    $788.48 excl GST
    GREYFLOW-PS-AG-Automatic-Range

    GreyFlow™ | PS-AG-S4 (Automatic 400W) - 100mm Inlet

    GW GFPS-AG-S4
    Automatic 400W GreyFlow™ PS-AG diversion unit with backflushing filtration, suited to higher-flow greywater and more difficult land-application layouts.
    $3,268.12 excl GST

    Customer Service

    Socials

    Call Us On

    0800 022 0270980 213 17

    Email Us At

    sales@wctnz.co.nzsupport@wctnz.co.nz
    Copyright © 2026 WCTNZ® | Waterless Composting Toilets NZ. All rights reserved.
    All prices are entered excluding tax. Excluding shipping