Price of PartsINDUSTRIAL PRICE INDEX
SMC

SYLVANIA-21720

2 sellers — below our five-seller verification bar

Market snapshot

Prices updated 10 Aug 2026 · next refresh 10 Sep
$63.06
Low
$179
High
Interlight — $63.061000Bulbs — $179InterlightInterlight$63.06 · MEDIAN1000Bulbs1000Bulbs$179

Median $121 · 2 sellers · $58.19 below median at the lowest

$ Compare your quote against 2 current asking prices.

Asking prices for the exact catalog number SYLVANIA-21720 currently range from $63.06 to $179 across 2 sellers, observed 10 Aug 2026. Prices are published seller asking prices; shipping, taxes and negotiated trade pricing are not included.

Current listings

2 SELLERS · SORTED BY PRICE
SellerPricevs medianListing
Interlight $63.06-48% View offer
1000Bulbs $179.44+48% View offer

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Variants and similar numbers

VERIFY BEFORE ORDERING
Catalog numberRelationshipSellersMedianvs this part
SYLVANIA-21779one character apart4$111-8%
SYLVANIA-21777one character apart3$110-9%
SYLVANIA-21781one character apart2$119-2%

These are different products that read almost identically on a purchase order. Google groups them together; we do not. Confirm the exact suffix against the nameplate before ordering.

Frequently asked

How much does a SYLVANIA-21720 cost?

As of 10 Aug 2026, the SMC SYLVANIA-21720 is listed from $63.06 to $179 across 2 sellers. The median asking price is $121. Prices are published seller asking prices and are refreshed monthly.

Who sells the SYLVANIA-21720?

2 sellers currently list the SYLVANIA-21720, including Interlight, 1000Bulbs. 2 of them are specialist industrial distributors. The lowest current asking price is $63.06 from Interlight.

Why do SYLVANIA-21720 prices vary so much?

The highest asking price for the SYLVANIA-21720 is 2.8× the lowest. Industrial parts trade in a market where new surplus, refurbished stock and list-price sellers coexist without a shared price reference, so identical catalog numbers are listed at very different prices.