Home > RV Parts & Hardware > RV Skylights >

Specialty Recreation SL1818W Square Flat-Top Pyramid Dome RV Skylight 18" x 18" - White

Specialty Recreation SL1818W Square Flat-Top Pyramid Dome RV Skylight 18" x 18" - White
Specialty Recreation Square Flat-Top Pyramid Dome RV Skylight 18" x 18" - White
 
List Price: $213.99
: $147.99
You save $66.00!
Part Number: SL1818W
Manufacturer: Specialty Recreation

Quantity in Stock :15

Free Shipping
Availability: In Stock
Qty:

 
Specialty Recreation SL1818W Square Flat-Top Pyramid RV Skylight 18"×18" — White — Fits 18"×18" Opening

Specialty Recreation SL1818W Square Flat-Top Pyramid RV Skylight — 18"×18" — White — Fits 18"×18" Opening

Direct replacement thermoformed polycarbonate square flat-top pyramid skylight for 18"×18" roof openings. White. 21-1/2"×21-1/2" outer flange. Flat-top pyramid dome profile. No metal flanges. Approved elastomeric sealant included. Made in the USA.

ℹ️ Flat-Top Pyramid Dome — What That Means

A flat-top pyramid dome has straight angled sides that rise from the flange to a flat top panel — unlike a bubble dome which has a single rounded curve. The result is a more angular, architectural profile that sits differently on the roof than a standard bubble skylight.

This is a specific dome style used on certain RV models. If your existing skylight has a flat-top pyramid profile, replacing it with a standard bubble dome will look different. Verify your existing dome profile before ordering.

White Flat-Top Pyramid Skylight — Like-for-Like Replacement for 18"×18" Openings

The Specialty Recreation SL1818W is a direct replacement flat-top pyramid square skylight for RVs with 18"×18" roof openings. The flat-top pyramid profile matches the style of original equipment skylights found on certain Class A, B, and C motorhomes and travel trailers — providing a like-for-like replacement that maintains the original roof appearance rather than substituting a bubble dome.

White tint passes maximum natural daylight. Same proven Specialty Recreation thermoformed polycarbonate construction: approved elastomeric sealant included, no metal flanges, smooth glossed surface for easy cleaning.

🔷 Flat-Top Pyramid Profile

Angular flat-top dome matches original equipment on certain RV models — maintains the original roof appearance unlike a bubble dome

🤍 White — Maximum Light

White tint maximizes natural light transmission — bright, open interior feel

💪 Thermoformed Polycarbonate

UV-resistant, impact-resistant construction — durable replacement for aged or cracked original skylights

🇺🇸 Made in the USA

Specialty Recreation manufactures their skylights domestically — sealant included, 1-year warranty

Key Features & Benefits

  • Flat-Top Pyramid Dome: Angular profile with straight sides and a flat top — matches the style of original equipment flat-top skylights on certain RV brands and models
  • Direct Replacement for 18"×18" Openings: Fits all standard 18"×18" square roof openings
  • White Tint: Maximum natural light — brightest option for this skylight style and size
  • Approved Sealant Included: Ships with a 10 oz tube of the correct elastomeric sealant for polycarbonate
  • High-Quality Thermoformed Polycarbonate: Durable, UV-resistant construction that outlasts original equipment
  • Smooth Glossed Surface: Easy to clean
  • No Metal Flanges: Clean polycarbonate construction with no metal components
  • 21-1/2"×21-1/2" Outer Flange: 1-3/4" overlap on all sides of the 18"×18" opening
  • Interior Garnish Not Included: Order separately if needed to finish the inside ceiling opening
  • Made in the USA

⚠️ Use Only the Included Sealant

The approved elastomeric sealant included with this skylight is specifically compatible with polycarbonate. Do not substitute self-leveling lap sealants (such as Dicor or similar) — these contain chemicals that react with polycarbonate and can cause cracking and failure of the dome.

📋 Warranty Note

The Specialty Recreation Inc. product warranty covers defects in workmanship and materials for 1 year from the date of purchase. Warranty does not apply to damage caused by improper installation.

Note: Some product listings reference a 90-day warranty term; Specialty Recreation's published warranty policy is 1 year.

Specifications

Part NumberSL1818W
BrandSpecialty Recreation
ShapeSquare
Dome TypeFlat-Top Pyramid
Color / TintWhite
Hole Size (Rough Opening)18" L × 18" W
Flange Dimensions (Outer)21-1/2" L × 21-1/2" W
MaterialThermoformed Polycarbonate
Metal FlangeNo
Weight8 lbs.
Interior GarnishNot Included (sold separately)
Country of OriginMade in the USA
Warranty1 Year (Specialty Recreation)

📦 What's Included

• (1) SL1818W White Flat-Top Pyramid Square Skylight
• (1) 10 oz tube of approved elastomeric sealant
• Care instructions
• Installation instructions

NOT Included:
• Interior garnish/trim ring (sold separately)
• Mounting screws/hardware

📐 Measure Before You Order

Verify both measurements and the dome profile before ordering:

Rough Opening: 18" L × 18" W
Outer Flange: 21-1/2" L × 21-1/2" W

Also confirm your existing skylight has a flat-top pyramid profile. If it has a curved bubble profile, this skylight will look different — see the N1818 inner garnish family for 18"×18" bubble-style options.

🔗 Related Specialty Recreation 18"×18" Products

N1818 — White inner garnish for 18"×18" openings (bubble dome, 3.5" height)

Need a bubble dome instead of flat-top pyramid? Specialty Recreation also offers bubble-style skylights for 18"×18" openings — verify your existing dome profile before ordering.



Browse for more RV Accessories in the same category as this item:

RV Parts & Hardware > RV Skylights
RV Parts & Hardware


$225.00
$5.68
$7.46
$20.49