Mechanical Seal for SpaNET Davey QB, LX Whirlpool, SpaNet Spa Pumps

Mechanical Seal Kit to Suit Davey QB, LX Whirlpool, Spanet Jetmaster Spa Pumps

Premium replacement mechanical seal kit to suit a wide range of Spanet Jetmaster, Davey QB Series, and LX Whirlpool spa pumps. This seal assembly is the common 5/8" booted cup with 3/4" ceramic face style used on many popular spa and spa bath pump models.

Common cross references include SB16, SB16SP, D-SB16SP, and LX-SPASEAL. This seal type is commonly listed for Davey QB, LX, and Spanet XS / Jetmaster pump applications. Always confirm by measurements and seal style before ordering.

Compatible Pump Models

• Davey QB Series: QB035, QB1501, QB2001, QB2002, QB2501, QB2502, QB3001, QB3002
• Spanet / Jetmaster: XS30, XS-30, XS-30S, XS30-2S, XS30-3P, XS20-2S, XS3C, XS-3C QuietFlo
• LX Whirlpool: TDA, WP, LP, EA, JA Series, including JA35, JA50, JA75, JA100, JA150, JA200, LP150, LP200, LP250, LP300, WP200, WP200-II, WP250, WP250-II, WP300-II, WP500, EA390, EA450, TDA100, TDA150, TDA200

Common Part Numbers / Cross References

• SB16
• SB16SP
• D-SB16SP
• LX-SPASEAL

Seal Dimensions

• Spring Section OD (with rubber): 41.5mm
• Spring Section ID: 17.4mm
• Ceramic Section OD (with rubber): 35.5mm
• Ceramic ID: 18.95mm
• Seal Type: 5/8" Booted Cup with 3/4" Ceramic Face

Quality Matters

A worn or incorrect mechanical seal can allow water to leak along the motor shaft and damage the pump motor. This replacement seal is a quality aftermarket spare designed for reliable sealing performance and long service life when correctly fitted.

Cheap low-grade seals often use inferior rubber compounds, weaker springs, or inconsistent ceramic faces, which can lead to early leakage and repeat failures. That is why seal quality matters.

Important Before Ordering

• Please compare the seal style, measurements, and pump model before ordering.
• Some early, uncommon, or non-standard Chinese pump variants may use a different seal.
• Spanet identifies this seal set for models including XS3C, XS30, XS30-S, XS30-2S, XS30-3P, and XS20-2S.:contentReference[oaicite:2]{index=2}
• Mechanical seals are a wearing part and life span can vary depending on water balance, chemical condition, and pump run time.:contentReference[oaicite:3]{index=3}
• If unsure, send us clear photos of your old seal and pump model details before purchase.