Direct replacement thermoformed polycarbonate rectangular skylight for 18"×24" roof openings. White — maximum natural light. 21-1/2"×27-1/2" outer flange. 5" bubble height. No metal flanges. Approved elastomeric sealant included. Made in the USA.
The Specialty Recreation SL1824W is a direct replacement rectangular skylight for RVs with 18"×24" roof openings. White tint passes maximum natural daylight — ideal for living areas, bedrooms, and hallways where full overhead light is preferred. The 21-1/2"×27-1/2" outer flange provides generous coverage around the opening, and the 5" bubble height gives a classic dome profile that sheds water naturally.
Same proven Specialty Recreation construction throughout: approved elastomeric sealant included, no metal flanges, smooth glossed surface easy to clean. Interior garnish is sold separately.
Maximum natural light transmission — the brightest option for RV interiors where full overhead daylight is desired
Mid-size rectangular format — measure carefully and verify both dimensions before ordering
UV-resistant, impact-resistant construction — durable and long-lasting for rooftop use
Specialty Recreation manufactures their skylights domestically — sealant included, 1-year warranty
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.
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.
• (1) SL1824W White Rectangle Skylight • (1) 10 oz tube of approved elastomeric sealant • Care instructions • Installation instructions NOT Included: • Interior garnish/trim ring (sold separately) • Mounting screws/hardware
Verify both measurements before ordering: Rough Opening: 18" L × 24" W Outer Flange: 21-1/2" L × 27-1/2" W When replacing an existing skylight, also verify the outer flange of the old unit — the new flange must cover any sealant marks or weathered areas around the opening.
SL1830S — 18"×30" smoke black (same 18" short dimension, longer) SL1626W / SL1626S — 16"×26" in white and smoke (similar format, different size) SL1422W / SL1422S / SL1422C — 14"×22" in white, smoke, and clear Always measure your rough opening before selecting a replacement.